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Finding the Fourth Proportional to 104,478.60, 156,717.90 and 88,732.20

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Solution

The fourth proportional to 104,478.60, 156,717.90 and 88,732.20 is: 133,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,478.60 : 156,717.90 = 88,732.20 : x
  2. Step 2: Convert to fraction form
    104,478.60/156,717.90 = 88,732.20/x
  3. Step 3: Cross multiply
    104,478.60x = 156,717.90 × 88,732.20
  4. Step 4: Simplify right side
    104,478.60x = 13,905,924,046.38
  5. Step 5: Solve for x
    x = 13,905,924,046.38/104,478.60
  6. Step 6: Final answer
    x = 133,098.30

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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.