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Finding the Fourth Proportional to 159,542.26, 220,162.89 and 87,923.41

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Solution

The fourth proportional to 159,542.26, 220,162.89 and 87,923.41 is: 121,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,542.26 : 220,162.89 = 87,923.41 : x
  2. Step 2: Convert to fraction form
    159,542.26/220,162.89 = 87,923.41/x
  3. Step 3: Cross multiply
    159,542.26x = 220,162.89 × 87,923.41
  4. Step 4: Simplify right side
    159,542.26x = 19,357,472,044.25
  5. Step 5: Solve for x
    x = 19,357,472,044.25/159,542.26
  6. Step 6: Final answer
    x = 121,331.31

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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.