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Finding the Fourth Proportional to 132,529.80, 198,794.70 and 123,781.80

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Solution

The fourth proportional to 132,529.80, 198,794.70 and 123,781.80 is: 185,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,529.80 : 198,794.70 = 123,781.80 : x
  2. Step 2: Convert to fraction form
    132,529.80/198,794.70 = 123,781.80/x
  3. Step 3: Cross multiply
    132,529.80x = 198,794.70 × 123,781.80
  4. Step 4: Simplify right side
    132,529.80x = 24,607,165,796.46
  5. Step 5: Solve for x
    x = 24,607,165,796.46/132,529.80
  6. Step 6: Final answer
    x = 185,672.70

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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.