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Finding the Fourth Proportional to 83,773.04, 125,659.56 and 28,407.92

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Solution

The fourth proportional to 83,773.04, 125,659.56 and 28,407.92 is: 42,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,773.04 : 125,659.56 = 28,407.92 : x
  2. Step 2: Convert to fraction form
    83,773.04/125,659.56 = 28,407.92/x
  3. Step 3: Cross multiply
    83,773.04x = 125,659.56 × 28,407.92
  4. Step 4: Simplify right side
    83,773.04x = 3,569,726,727.72
  5. Step 5: Solve for x
    x = 3,569,726,727.72/83,773.04
  6. Step 6: Final answer
    x = 42,611.88

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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.