A friend of mine who has his child in a MO high school showed me his tuition bill for the year. It was over $24,000. For one child. No dorm.
A question to ask would be why is the tution at such a school be 4-5 times as much as tuition in Lakewood or even many in Brooklyn? And the school also cries poverty.
Anyway, te point is, full tuition at these schools for three children is hardly likely going to be in the 25,000 range, more likely it will be close on 40-50,000.