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Finding the Fourth Proportional to 95,282.80, 131,469.22 and 54,988

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Solution

The fourth proportional to 95,282.80, 131,469.22 and 54,988 is: 75,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,282.80 : 131,469.22 = 54,988 : x
  2. Step 2: Convert to fraction form
    95,282.80/131,469.22 = 54,988/x
  3. Step 3: Cross multiply
    95,282.80x = 131,469.22 × 54,988
  4. Step 4: Simplify right side
    95,282.80x = 7,229,229,469.36
  5. Step 5: Solve for x
    x = 7,229,229,469.36/95,282.80
  6. Step 6: Final answer
    x = 75,871.30

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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.