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Finding the Fourth Proportional to 83,296.52, 124,889.20 and 45,874.32

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Solution

The fourth proportional to 83,296.52, 124,889.20 and 45,874.32 is: 68,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,296.52 : 124,889.20 = 45,874.32 : x
  2. Step 2: Convert to fraction form
    83,296.52/124,889.20 = 45,874.32/x
  3. Step 3: Cross multiply
    83,296.52x = 124,889.20 × 45,874.32
  4. Step 4: Simplify right side
    83,296.52x = 5,729,207,125.34
  5. Step 5: Solve for x
    x = 5,729,207,125.34/83,296.52
  6. Step 6: Final answer
    x = 68,780.87

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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.