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Finding the Fourth Proportional to 324,382.39, 486,586.85 and 111,296.85

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Solution

The fourth proportional to 324,382.39, 486,586.85 and 111,296.85 is: 166,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,382.39 : 486,586.85 = 111,296.85 : x
  2. Step 2: Convert to fraction form
    324,382.39/486,586.85 = 111,296.85/x
  3. Step 3: Cross multiply
    324,382.39x = 486,586.85 × 111,296.85
  4. Step 4: Simplify right side
    324,382.39x = 54,155,583,656.42
  5. Step 5: Solve for x
    x = 54,155,583,656.42/324,382.39
  6. Step 6: Final answer
    x = 166,949.83

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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.