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Finding the Fourth Proportional to 234,879.64, 352,318.49 and 85,084.85

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Solution

The fourth proportional to 234,879.64, 352,318.49 and 85,084.85 is: 127,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,879.64 : 352,318.49 = 85,084.85 : x
  2. Step 2: Convert to fraction form
    234,879.64/352,318.49 = 85,084.85/x
  3. Step 3: Cross multiply
    234,879.64x = 352,318.49 × 85,084.85
  4. Step 4: Simplify right side
    234,879.64x = 29,976,965,873.88
  5. Step 5: Solve for x
    x = 29,976,965,873.88/234,879.64
  6. Step 6: Final answer
    x = 127,626.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.