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Finding the Fourth Proportional to 93,998.43, 129,724.68 and 53,711.28

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Solution

The fourth proportional to 93,998.43, 129,724.68 and 53,711.28 is: 74,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,998.43 : 129,724.68 = 53,711.28 : x
  2. Step 2: Convert to fraction form
    93,998.43/129,724.68 = 53,711.28/x
  3. Step 3: Cross multiply
    93,998.43x = 129,724.68 × 53,711.28
  4. Step 4: Simplify right side
    93,998.43x = 6,967,678,610.39
  5. Step 5: Solve for x
    x = 6,967,678,610.39/93,998.43
  6. Step 6: Final answer
    x = 74,125.48

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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.