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Finding the Fourth Proportional to 159,596.46, 220,253.85 and 87,976.53

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Solution

The fourth proportional to 159,596.46, 220,253.85 and 87,976.53 is: 121,413.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,596.46 : 220,253.85 = 87,976.53 : x
  2. Step 2: Convert to fraction form
    159,596.46/220,253.85 = 87,976.53/x
  3. Step 3: Cross multiply
    159,596.46x = 220,253.85 × 87,976.53
  4. Step 4: Simplify right side
    159,596.46x = 19,377,169,442.14
  5. Step 5: Solve for x
    x = 19,377,169,442.14/159,596.46
  6. Step 6: Final answer
    x = 121,413.53

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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.