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Finding the Fourth Proportional to 87,643.76, 131,523.89 and 32,239.76

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Solution

The fourth proportional to 87,643.76, 131,523.89 and 32,239.76 is: 48,381.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,643.76 : 131,523.89 = 32,239.76 : x
  2. Step 2: Convert to fraction form
    87,643.76/131,523.89 = 32,239.76/x
  3. Step 3: Cross multiply
    87,643.76x = 131,523.89 × 32,239.76
  4. Step 4: Simplify right side
    87,643.76x = 4,240,297,829.05
  5. Step 5: Solve for x
    x = 4,240,297,829.05/87,643.76
  6. Step 6: Final answer
    x = 48,381.06

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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.