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Finding the Fourth Proportional to 132,390.52, 198,474.24 and 57,454.24

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Solution

The fourth proportional to 132,390.52, 198,474.24 and 57,454.24 is: 86,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,390.52 : 198,474.24 = 57,454.24 : x
  2. Step 2: Convert to fraction form
    132,390.52/198,474.24 = 57,454.24/x
  3. Step 3: Cross multiply
    132,390.52x = 198,474.24 × 57,454.24
  4. Step 4: Simplify right side
    132,390.52x = 11,403,186,618.78
  5. Step 5: Solve for x
    x = 11,403,186,618.78/132,390.52
  6. Step 6: Final answer
    x = 86,132.95

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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.