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Finding the Fourth Proportional to 159,914.26, 220,685.12 and 88,298.82

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Solution

The fourth proportional to 159,914.26, 220,685.12 and 88,298.82 is: 121,854.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,914.26 : 220,685.12 = 88,298.82 : x
  2. Step 2: Convert to fraction form
    159,914.26/220,685.12 = 88,298.82/x
  3. Step 3: Cross multiply
    159,914.26x = 220,685.12 × 88,298.82
  4. Step 4: Simplify right side
    159,914.26x = 19,486,235,687.56
  5. Step 5: Solve for x
    x = 19,486,235,687.56/159,914.26
  6. Step 6: Final answer
    x = 121,854.27

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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.