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Finding the Fourth Proportional to 68,951.52, 95,163.39 and 42,109.47

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Solution

The fourth proportional to 68,951.52, 95,163.39 and 42,109.47 is: 58,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,951.52 : 95,163.39 = 42,109.47 : x
  2. Step 2: Convert to fraction form
    68,951.52/95,163.39 = 42,109.47/x
  3. Step 3: Cross multiply
    68,951.52x = 95,163.39 × 42,109.47
  4. Step 4: Simplify right side
    68,951.52x = 4,007,279,916.30
  5. Step 5: Solve for x
    x = 4,007,279,916.30/68,951.52
  6. Step 6: Final answer
    x = 58,117.35

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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.