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Finding the Fourth Proportional to 133,593.92, 200,397 and 74,385

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Solution

The fourth proportional to 133,593.92, 200,397 and 74,385 is: 111,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,593.92 : 200,397 = 74,385 : x
  2. Step 2: Convert to fraction form
    133,593.92/200,397 = 74,385/x
  3. Step 3: Cross multiply
    133,593.92x = 200,397 × 74,385
  4. Step 4: Simplify right side
    133,593.92x = 14,906,530,845
  5. Step 5: Solve for x
    x = 14,906,530,845/133,593.92
  6. Step 6: Final answer
    x = 111,580.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.