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Finding the Fourth Proportional to 96,687.80, 145,046.10 and 34,353.40

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Solution

The fourth proportional to 96,687.80, 145,046.10 and 34,353.40 is: 51,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,687.80 : 145,046.10 = 34,353.40 : x
  2. Step 2: Convert to fraction form
    96,687.80/145,046.10 = 34,353.40/x
  3. Step 3: Cross multiply
    96,687.80x = 145,046.10 × 34,353.40
  4. Step 4: Simplify right side
    96,687.80x = 4,982,826,691.74
  5. Step 5: Solve for x
    x = 4,982,826,691.74/96,687.80
  6. Step 6: Final answer
    x = 51,535.22

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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.