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Finding the Fourth Proportional to 159,873.42, 220,626.87 and 88,251.90

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Solution

The fourth proportional to 159,873.42, 220,626.87 and 88,251.90 is: 121,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,873.42 : 220,626.87 = 88,251.90 : x
  2. Step 2: Convert to fraction form
    159,873.42/220,626.87 = 88,251.90/x
  3. Step 3: Cross multiply
    159,873.42x = 220,626.87 × 88,251.90
  4. Step 4: Simplify right side
    159,873.42x = 19,470,740,468.55
  5. Step 5: Solve for x
    x = 19,470,740,468.55/159,873.42
  6. Step 6: Final answer
    x = 121,788.48

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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.