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Finding the Fourth Proportional to 324,062.40, 486,093.60 and 137,073.90

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Solution

The fourth proportional to 324,062.40, 486,093.60 and 137,073.90 is: 205,610.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,062.40 : 486,093.60 = 137,073.90 : x
  2. Step 2: Convert to fraction form
    324,062.40/486,093.60 = 137,073.90/x
  3. Step 3: Cross multiply
    324,062.40x = 486,093.60 × 137,073.90
  4. Step 4: Simplify right side
    324,062.40x = 66,630,745,517.04
  5. Step 5: Solve for x
    x = 66,630,745,517.04/324,062.40
  6. Step 6: Final answer
    x = 205,610.85

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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.