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Finding the Fourth Proportional to 218,408.38, 327,576.03 and 60,652.78

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Solution

The fourth proportional to 218,408.38, 327,576.03 and 60,652.78 is: 90,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,408.38 : 327,576.03 = 60,652.78 : x
  2. Step 2: Convert to fraction form
    218,408.38/327,576.03 = 60,652.78/x
  3. Step 3: Cross multiply
    218,408.38x = 327,576.03 × 60,652.78
  4. Step 4: Simplify right side
    218,408.38x = 19,868,396,880.86
  5. Step 5: Solve for x
    x = 19,868,396,880.86/218,408.38
  6. Step 6: Final answer
    x = 90,969.02

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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.