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Finding the Fourth Proportional to 87,936, 131,924.48 and 29,568

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Solution

The fourth proportional to 87,936, 131,924.48 and 29,568 is: 44,358.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,936 : 131,924.48 = 29,568 : x
  2. Step 2: Convert to fraction form
    87,936/131,924.48 = 29,568/x
  3. Step 3: Cross multiply
    87,936x = 131,924.48 × 29,568
  4. Step 4: Simplify right side
    87,936x = 3,900,743,024.64
  5. Step 5: Solve for x
    x = 3,900,743,024.64/87,936
  6. Step 6: Final answer
    x = 44,358.89

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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.