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Finding the Fourth Proportional to 87,317.70, 130,920.20 and 41,700.70

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Solution

The fourth proportional to 87,317.70, 130,920.20 and 41,700.70 is: 62,524.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,317.70 : 130,920.20 = 41,700.70 : x
  2. Step 2: Convert to fraction form
    87,317.70/130,920.20 = 41,700.70/x
  3. Step 3: Cross multiply
    87,317.70x = 130,920.20 × 41,700.70
  4. Step 4: Simplify right side
    87,317.70x = 5,459,463,775.64
  5. Step 5: Solve for x
    x = 5,459,463,775.64/87,317.70
  6. Step 6: Final answer
    x = 62,524.14

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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.