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Finding the Fourth Proportional to 87,195.98, 120,326.91 and 49,469.42

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Solution

The fourth proportional to 87,195.98, 120,326.91 and 49,469.42 is: 68,265.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,195.98 : 120,326.91 = 49,469.42 : x
  2. Step 2: Convert to fraction form
    87,195.98/120,326.91 = 49,469.42/x
  3. Step 3: Cross multiply
    87,195.98x = 120,326.91 × 49,469.42
  4. Step 4: Simplify right side
    87,195.98x = 5,952,502,448.09
  5. Step 5: Solve for x
    x = 5,952,502,448.09/87,195.98
  6. Step 6: Final answer
    x = 68,265.79

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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.