What is the relation between the thousands of years old Valmiki Ramayan and the centuries old Sri Venkateshwara Suprabhatam?

The very first lines of the Sri Venkateshwara Suprabhatam (below) are from the original Valmiki Ramayana. Sage Vishwamitra says these lines in the Bala Kaanda section of Ramayana to wake up Prince Rama who is sleeping in a hermitage at the confluence of the rivers Ganga and Sarayu.

kausalya supraja Rama purva sandhya pravarthathe
Uththishta narasardhula karthavyam daivamahnikam

These lines mean,

Oh Rama, the great son of Kausalya, Twilight is approaching in the East.
Wake up, oh courageous man, its time to perform the daily divine rituals.

The place where Ganga meets Sarayu is the modern Jaiprakash Nagar (Sitab diara) village in the Ballia district of Uttar Pradesh. It is also the birth place of the great political activist and leader Jayaprakash Narayan.

So it is at this place that thousands of years ago, Sage Vishwamitra spoke these lines for the first time.

Isn’t it amazing that millions of households in India even today start their day by listening to these very same lines of Sage Vishwamitra at the beginning of the Sri Venkateshwara Suprabhatam?

Sri Venkateshwara Suprabhatam was composed around six centuries ago by Prativadi Bhayankara Sri Anantacharya, also known as the Ramanujacharya of Kanchipuram. Kanchipuram is a holy city in Tamilnadu, where 14 of the 108 temples of Lord Vishnu are located.