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Finding the Fourth Proportional to 93,125.52, 128,512.96 and 50,684.08

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Solution

The fourth proportional to 93,125.52, 128,512.96 and 50,684.08 is: 69,943.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,125.52 : 128,512.96 = 50,684.08 : x
  2. Step 2: Convert to fraction form
    93,125.52/128,512.96 = 50,684.08/x
  3. Step 3: Cross multiply
    93,125.52x = 128,512.96 × 50,684.08
  4. Step 4: Simplify right side
    93,125.52x = 6,513,561,145.68
  5. Step 5: Solve for x
    x = 6,513,561,145.68/93,125.52
  6. Step 6: Final answer
    x = 69,943.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.