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Finding the Fourth Proportional to 68,917.38, 103,310.41 and 22,137.42

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Solution

The fourth proportional to 68,917.38, 103,310.41 and 22,137.42 is: 33,185.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,917.38 : 103,310.41 = 22,137.42 : x
  2. Step 2: Convert to fraction form
    68,917.38/103,310.41 = 22,137.42/x
  3. Step 3: Cross multiply
    68,917.38x = 103,310.41 × 22,137.42
  4. Step 4: Simplify right side
    68,917.38x = 2,287,025,936.54
  5. Step 5: Solve for x
    x = 2,287,025,936.54/68,917.38
  6. Step 6: Final answer
    x = 33,185.04

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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.