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Finding the Fourth Proportional to 156,874.73, 216,396.97 and 96,402.35

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Solution

The fourth proportional to 156,874.73, 216,396.97 and 96,402.35 is: 132,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,874.73 : 216,396.97 = 96,402.35 : x
  2. Step 2: Convert to fraction form
    156,874.73/216,396.97 = 96,402.35/x
  3. Step 3: Cross multiply
    156,874.73x = 216,396.97 × 96,402.35
  4. Step 4: Simplify right side
    156,874.73x = 20,861,176,740.87
  5. Step 5: Solve for x
    x = 20,861,176,740.87/156,874.73
  6. Step 6: Final answer
    x = 132,979.85

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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.