Please answer the following question by reasoning step-by-step.
I bought a pair of shoes for $51. The shoes were already marked 75% off. What is the original price of the shoes?

204
Let X be the original price of the shoes.

The discounted price is X - X * 75% = 0.

25 * X = $51.

The original price of the shirt was X = $51 * 4 = $204.

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So, the final answer is 204