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Finding the Fourth Proportional to 159,487.98, 220,085.26 and 87,866.56

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Solution

The fourth proportional to 159,487.98, 220,085.26 and 87,866.56 is: 121,251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,487.98 : 220,085.26 = 87,866.56 : x
  2. Step 2: Convert to fraction form
    159,487.98/220,085.26 = 87,866.56/x
  3. Step 3: Cross multiply
    159,487.98x = 220,085.26 × 87,866.56
  4. Step 4: Simplify right side
    159,487.98x = 19,338,134,702.91
  5. Step 5: Solve for x
    x = 19,338,134,702.91/159,487.98
  6. Step 6: Final answer
    x = 121,251.36

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