Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Tommy's home is worth 25% more than he bought it for. He sells it and buys a new house that costs $500,000. If he had to take a loan for the 75% he can't pay, how much did he buy his first house for?

### Response:
 Alilipa 25% ya bei ya nyumba mpya kwa sababu 100 - 75 = <<100-75=25>>25
Alilipa $125,000 kwa nyumba mpya kwa sababu 500,000 x .25 = 125,000
Alilipa $100,000 kwa nyumba yake ya kwanza kwa sababu 125,000 / 1.25 = <<125000/1.25=100000>>100,000