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Finding the Fourth Proportional to 83,404.97, 115,098.64 and 45,164.56

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Solution

The fourth proportional to 83,404.97, 115,098.64 and 45,164.56 is: 62,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,404.97 : 115,098.64 = 45,164.56 : x
  2. Step 2: Convert to fraction form
    83,404.97/115,098.64 = 45,164.56/x
  3. Step 3: Cross multiply
    83,404.97x = 115,098.64 × 45,164.56
  4. Step 4: Simplify right side
    83,404.97x = 5,198,379,432.20
  5. Step 5: Solve for x
    x = 5,198,379,432.20/83,404.97
  6. Step 6: Final answer
    x = 62,326.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.