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Finding the Fourth Proportional to 218,138.28, 327,214.72 and 60,353.52

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Solution

The fourth proportional to 218,138.28, 327,214.72 and 60,353.52 is: 90,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,138.28 : 327,214.72 = 60,353.52 : x
  2. Step 2: Convert to fraction form
    218,138.28/327,214.72 = 60,353.52/x
  3. Step 3: Cross multiply
    218,138.28x = 327,214.72 × 60,353.52
  4. Step 4: Simplify right side
    218,138.28x = 19,748,560,147.81
  5. Step 5: Solve for x
    x = 19,748,560,147.81/218,138.28
  6. Step 6: Final answer
    x = 90,532.30

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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.