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Finding the Fourth Proportional to 250,092.85, 375,198.96 and 81,613.49

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Solution

The fourth proportional to 250,092.85, 375,198.96 and 81,613.49 is: 122,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,092.85 : 375,198.96 = 81,613.49 : x
  2. Step 2: Convert to fraction form
    250,092.85/375,198.96 = 81,613.49/x
  3. Step 3: Cross multiply
    250,092.85x = 375,198.96 × 81,613.49
  4. Step 4: Simplify right side
    250,092.85x = 30,621,296,569.97
  5. Step 5: Solve for x
    x = 30,621,296,569.97/250,092.85
  6. Step 6: Final answer
    x = 122,439.71

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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.