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Finding the Fourth Proportional to 159,856.80, 220,601.18 and 88,236.81

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Solution

The fourth proportional to 159,856.80, 220,601.18 and 88,236.81 is: 121,766.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,856.80 : 220,601.18 = 88,236.81 : x
  2. Step 2: Convert to fraction form
    159,856.80/220,601.18 = 88,236.81/x
  3. Step 3: Cross multiply
    159,856.80x = 220,601.18 × 88,236.81
  4. Step 4: Simplify right side
    159,856.80x = 19,465,143,964.25
  5. Step 5: Solve for x
    x = 19,465,143,964.25/159,856.80
  6. Step 6: Final answer
    x = 121,766.13

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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.