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Finding the Fourth Proportional to 156,359.60, 215,787.04 and 95,129.68

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Solution

The fourth proportional to 156,359.60, 215,787.04 and 95,129.68 is: 131,285.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,359.60 : 215,787.04 = 95,129.68 : x
  2. Step 2: Convert to fraction form
    156,359.60/215,787.04 = 95,129.68/x
  3. Step 3: Cross multiply
    156,359.60x = 215,787.04 × 95,129.68
  4. Step 4: Simplify right side
    156,359.60x = 20,527,752,063.35
  5. Step 5: Solve for x
    x = 20,527,752,063.35/156,359.60
  6. Step 6: Final answer
    x = 131,285.52

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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.