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Finding the Fourth Proportional to 68,951.49, 103,468.54 and 29,508.64

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Solution

The fourth proportional to 68,951.49, 103,468.54 and 29,508.64 is: 44,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,951.49 : 103,468.54 = 29,508.64 : x
  2. Step 2: Convert to fraction form
    68,951.49/103,468.54 = 29,508.64/x
  3. Step 3: Cross multiply
    68,951.49x = 103,468.54 × 29,508.64
  4. Step 4: Simplify right side
    68,951.49x = 3,053,215,898.19
  5. Step 5: Solve for x
    x = 3,053,215,898.19/68,951.49
  6. Step 6: Final answer
    x = 44,280.64

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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.