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Finding the Fourth Proportional to 68,909.97, 95,104.17 and 38,696.57

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Solution

The fourth proportional to 68,909.97, 95,104.17 and 38,696.57 is: 53,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,909.97 : 95,104.17 = 38,696.57 : x
  2. Step 2: Convert to fraction form
    68,909.97/95,104.17 = 38,696.57/x
  3. Step 3: Cross multiply
    68,909.97x = 95,104.17 × 38,696.57
  4. Step 4: Simplify right side
    68,909.97x = 3,680,204,696.18
  5. Step 5: Solve for x
    x = 3,680,204,696.18/68,909.97
  6. Step 6: Final answer
    x = 53,405.98

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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.