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Finding the Fourth Proportional to 68,468.01, 94,469.65 and 39,770.62

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Solution

The fourth proportional to 68,468.01, 94,469.65 and 39,770.62 is: 54,874.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,468.01 : 94,469.65 = 39,770.62 : x
  2. Step 2: Convert to fraction form
    68,468.01/94,469.65 = 39,770.62/x
  3. Step 3: Cross multiply
    68,468.01x = 94,469.65 × 39,770.62
  4. Step 4: Simplify right side
    68,468.01x = 3,757,115,979.91
  5. Step 5: Solve for x
    x = 3,757,115,979.91/68,468.01
  6. Step 6: Final answer
    x = 54,874.04

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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.