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Finding the Fourth Proportional to 159,861.93, 220,609.49 and 88,241.97

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Solution

The fourth proportional to 159,861.93, 220,609.49 and 88,241.97 is: 121,773.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,861.93 : 220,609.49 = 88,241.97 : x
  2. Step 2: Convert to fraction form
    159,861.93/220,609.49 = 88,241.97/x
  3. Step 3: Cross multiply
    159,861.93x = 220,609.49 × 88,241.97
  4. Step 4: Simplify right side
    159,861.93x = 19,467,015,998.30
  5. Step 5: Solve for x
    x = 19,467,015,998.30/159,861.93
  6. Step 6: Final answer
    x = 121,773.93

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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.