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Finding the Fourth Proportional to 132,529.30, 198,793.95 and 123,781.30

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Solution

The fourth proportional to 132,529.30, 198,793.95 and 123,781.30 is: 185,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,529.30 : 198,793.95 = 123,781.30 : x
  2. Step 2: Convert to fraction form
    132,529.30/198,793.95 = 123,781.30/x
  3. Step 3: Cross multiply
    132,529.30x = 198,793.95 × 123,781.30
  4. Step 4: Simplify right side
    132,529.30x = 24,606,973,563.14
  5. Step 5: Solve for x
    x = 24,606,973,563.14/132,529.30
  6. Step 6: Final answer
    x = 185,671.95

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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.