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Finding the Fourth Proportional to 225,882.90, 338,826.98 and 68,112.72

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Solution

The fourth proportional to 225,882.90, 338,826.98 and 68,112.72 is: 102,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,882.90 : 338,826.98 = 68,112.72 : x
  2. Step 2: Convert to fraction form
    225,882.90/338,826.98 = 68,112.72/x
  3. Step 3: Cross multiply
    225,882.90x = 338,826.98 × 68,112.72
  4. Step 4: Simplify right side
    225,882.90x = 23,078,427,217.19
  5. Step 5: Solve for x
    x = 23,078,427,217.19/225,882.90
  6. Step 6: Final answer
    x = 102,169.87

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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.