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Finding the Fourth Proportional to 159,836.15, 220,572.80 and 88,216.17

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Solution

The fourth proportional to 159,836.15, 220,572.80 and 88,216.17 is: 121,737.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,836.15 : 220,572.80 = 88,216.17 : x
  2. Step 2: Convert to fraction form
    159,836.15/220,572.80 = 88,216.17/x
  3. Step 3: Cross multiply
    159,836.15x = 220,572.80 × 88,216.17
  4. Step 4: Simplify right side
    159,836.15x = 19,458,087,622.18
  5. Step 5: Solve for x
    x = 19,458,087,622.18/159,836.15
  6. Step 6: Final answer
    x = 121,737.71

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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.