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Finding the Fourth Proportional to 132,471.64, 198,727.17 and 43,734.52

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Solution

The fourth proportional to 132,471.64, 198,727.17 and 43,734.52 is: 65,608.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,471.64 : 198,727.17 = 43,734.52 : x
  2. Step 2: Convert to fraction form
    132,471.64/198,727.17 = 43,734.52/x
  3. Step 3: Cross multiply
    132,471.64x = 198,727.17 × 43,734.52
  4. Step 4: Simplify right side
    132,471.64x = 8,691,237,390.91
  5. Step 5: Solve for x
    x = 8,691,237,390.91/132,471.64
  6. Step 6: Final answer
    x = 65,608.29

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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.