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Finding the Fourth Proportional to 87,073.65, 120,160.31 and 48,833.19

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Solution

The fourth proportional to 87,073.65, 120,160.31 and 48,833.19 is: 67,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,073.65 : 120,160.31 = 48,833.19 : x
  2. Step 2: Convert to fraction form
    87,073.65/120,160.31 = 48,833.19/x
  3. Step 3: Cross multiply
    87,073.65x = 120,160.31 × 48,833.19
  4. Step 4: Simplify right side
    87,073.65x = 5,867,811,004.52
  5. Step 5: Solve for x
    x = 5,867,811,004.52/87,073.65
  6. Step 6: Final answer
    x = 67,389.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.