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Finding the Fourth Proportional to 58,717.10, 87,964.92 and 45,504.87

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Solution

The fourth proportional to 58,717.10, 87,964.92 and 45,504.87 is: 68,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,717.10 : 87,964.92 = 45,504.87 : x
  2. Step 2: Convert to fraction form
    58,717.10/87,964.92 = 45,504.87/x
  3. Step 3: Cross multiply
    58,717.10x = 87,964.92 × 45,504.87
  4. Step 4: Simplify right side
    58,717.10x = 4,002,832,249.16
  5. Step 5: Solve for x
    x = 4,002,832,249.16/58,717.10
  6. Step 6: Final answer
    x = 68,171.50

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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.