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Finding the Fourth Proportional to 132,079.76, 198,117.56 and 53,191.92

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Solution

The fourth proportional to 132,079.76, 198,117.56 and 53,191.92 is: 79,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,079.76 : 198,117.56 = 53,191.92 : x
  2. Step 2: Convert to fraction form
    132,079.76/198,117.56 = 53,191.92/x
  3. Step 3: Cross multiply
    132,079.76x = 198,117.56 × 53,191.92
  4. Step 4: Simplify right side
    132,079.76x = 10,538,253,402.12
  5. Step 5: Solve for x
    x = 10,538,253,402.12/132,079.76
  6. Step 6: Final answer
    x = 79,787.04

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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.