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Finding the Fourth Proportional to 87,422.70, 131,036.85 and 37,494.30

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Solution

The fourth proportional to 87,422.70, 131,036.85 and 37,494.30 is: 56,199.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,422.70 : 131,036.85 = 37,494.30 : x
  2. Step 2: Convert to fraction form
    87,422.70/131,036.85 = 37,494.30/x
  3. Step 3: Cross multiply
    87,422.70x = 131,036.85 × 37,494.30
  4. Step 4: Simplify right side
    87,422.70x = 4,913,134,964.96
  5. Step 5: Solve for x
    x = 4,913,134,964.96/87,422.70
  6. Step 6: Final answer
    x = 56,199.76

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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.