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Finding the Fourth Proportional to 68,951.10, 103,472.82 and 29,517.87

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Solution

The fourth proportional to 68,951.10, 103,472.82 and 29,517.87 is: 44,296.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,951.10 : 103,472.82 = 29,517.87 : x
  2. Step 2: Convert to fraction form
    68,951.10/103,472.82 = 29,517.87/x
  3. Step 3: Cross multiply
    68,951.10x = 103,472.82 × 29,517.87
  4. Step 4: Simplify right side
    68,951.10x = 3,054,297,249.29
  5. Step 5: Solve for x
    x = 3,054,297,249.29/68,951.10
  6. Step 6: Final answer
    x = 44,296.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.