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Finding the Fourth Proportional to 68,469.84, 94,488.12 and 38,257.92

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Solution

The fourth proportional to 68,469.84, 94,488.12 and 38,257.92 is: 52,795.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,469.84 : 94,488.12 = 38,257.92 : x
  2. Step 2: Convert to fraction form
    68,469.84/94,488.12 = 38,257.92/x
  3. Step 3: Cross multiply
    68,469.84x = 94,488.12 × 38,257.92
  4. Step 4: Simplify right side
    68,469.84x = 3,614,918,935.91
  5. Step 5: Solve for x
    x = 3,614,918,935.91/68,469.84
  6. Step 6: Final answer
    x = 52,795.78

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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.