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Finding the Fourth Proportional to 83,914.62, 125,841.69 and 28,497.66

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Solution

The fourth proportional to 83,914.62, 125,841.69 and 28,497.66 is: 42,736.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,914.62 : 125,841.69 = 28,497.66 : x
  2. Step 2: Convert to fraction form
    83,914.62/125,841.69 = 28,497.66/x
  3. Step 3: Cross multiply
    83,914.62x = 125,841.69 × 28,497.66
  4. Step 4: Simplify right side
    83,914.62x = 3,586,193,695.45
  5. Step 5: Solve for x
    x = 3,586,193,695.45/83,914.62
  6. Step 6: Final answer
    x = 42,736.22

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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.