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Finding the Fourth Proportional to 87,425.40, 131,040.90 and 48,010.80

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Solution

The fourth proportional to 87,425.40, 131,040.90 and 48,010.80 is: 71,962.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,425.40 : 131,040.90 = 48,010.80 : x
  2. Step 2: Convert to fraction form
    87,425.40/131,040.90 = 48,010.80/x
  3. Step 3: Cross multiply
    87,425.40x = 131,040.90 × 48,010.80
  4. Step 4: Simplify right side
    87,425.40x = 6,291,378,441.72
  5. Step 5: Solve for x
    x = 6,291,378,441.72/87,425.40
  6. Step 6: Final answer
    x = 71,962.82

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1.5x scale

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.