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Finding the Fourth Proportional to 159,711, 220,402.20 and 88,092.96

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Solution

The fourth proportional to 159,711, 220,402.20 and 88,092.96 is: 121,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,711 : 220,402.20 = 88,092.96 : x
  2. Step 2: Convert to fraction form
    159,711/220,402.20 = 88,092.96/x
  3. Step 3: Cross multiply
    159,711x = 220,402.20 × 88,092.96
  4. Step 4: Simplify right side
    159,711x = 19,415,882,188.51
  5. Step 5: Solve for x
    x = 19,415,882,188.51/159,711
  6. Step 6: Final answer
    x = 121,568.85

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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.