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Finding the Fourth Proportional to 68,963.52, 95,169.72 and 39,155.52

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Solution

The fourth proportional to 68,963.52, 95,169.72 and 39,155.52 is: 54,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,963.52 : 95,169.72 = 39,155.52 : x
  2. Step 2: Convert to fraction form
    68,963.52/95,169.72 = 39,155.52/x
  3. Step 3: Cross multiply
    68,963.52x = 95,169.72 × 39,155.52
  4. Step 4: Simplify right side
    68,963.52x = 3,726,419,874.85
  5. Step 5: Solve for x
    x = 3,726,419,874.85/68,963.52
  6. Step 6: Final answer
    x = 54,034.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.