If my math is correct your yearly tuition is nearly 80% of your family's annual income? You don't have any other source of funds (bank loan?).
If not, that I think it will be hard.. how can your parents maintain their lifestyle if 80% of their income is suddenly taken away to pay for your tuition?
If you have access to enough money to cover your tuition, than the yearly income matters less. The onus will be on you to prove the source of the funds, and whether you actually have access to spend it all on your education.