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Finding the Fourth Proportional to 83,063.52, 124,396.56 and 45,565.92

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Solution

The fourth proportional to 83,063.52, 124,396.56 and 45,565.92 is: 68,239.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,063.52 : 124,396.56 = 45,565.92 : x
  2. Step 2: Convert to fraction form
    83,063.52/124,396.56 = 45,565.92/x
  3. Step 3: Cross multiply
    83,063.52x = 124,396.56 × 45,565.92
  4. Step 4: Simplify right side
    83,063.52x = 5,668,243,701.24
  5. Step 5: Solve for x
    x = 5,668,243,701.24/83,063.52
  6. Step 6: Final answer
    x = 68,239.87

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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.