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Finding the Fourth Proportional to 118,177.92, 177,234.68 and 39,281.90

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Solution

The fourth proportional to 118,177.92, 177,234.68 and 39,281.90 is: 58,912.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,177.92 : 177,234.68 = 39,281.90 : x
  2. Step 2: Convert to fraction form
    118,177.92/177,234.68 = 39,281.90/x
  3. Step 3: Cross multiply
    118,177.92x = 177,234.68 × 39,281.90
  4. Step 4: Simplify right side
    118,177.92x = 6,962,114,188.32
  5. Step 5: Solve for x
    x = 6,962,114,188.32/118,177.92
  6. Step 6: Final answer
    x = 58,912.14

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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.