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Finding the Fourth Proportional to 87,958.39, 131,974.95 and 43,585.98

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Solution

The fourth proportional to 87,958.39, 131,974.95 and 43,585.98 is: 65,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,958.39 : 131,974.95 = 43,585.98 : x
  2. Step 2: Convert to fraction form
    87,958.39/131,974.95 = 43,585.98/x
  3. Step 3: Cross multiply
    87,958.39x = 131,974.95 × 43,585.98
  4. Step 4: Simplify right side
    87,958.39x = 5,752,257,313.27
  5. Step 5: Solve for x
    x = 5,752,257,313.27/87,958.39
  6. Step 6: Final answer
    x = 65,397.48

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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.