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Finding the Fourth Proportional to 356,546.60, 534,819.90 and 156,654.80

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Solution

The fourth proportional to 356,546.60, 534,819.90 and 156,654.80 is: 234,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,546.60 : 534,819.90 = 156,654.80 : x
  2. Step 2: Convert to fraction form
    356,546.60/534,819.90 = 156,654.80/x
  3. Step 3: Cross multiply
    356,546.60x = 534,819.90 × 156,654.80
  4. Step 4: Simplify right side
    356,546.60x = 83,782,104,470.52
  5. Step 5: Solve for x
    x = 83,782,104,470.52/356,546.60
  6. Step 6: Final answer
    x = 234,982.20

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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.