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Finding the Fourth Proportional to 218,240.28, 327,374.25 and 68,486.48

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Solution

The fourth proportional to 218,240.28, 327,374.25 and 68,486.48 is: 102,734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,240.28 : 327,374.25 = 68,486.48 : x
  2. Step 2: Convert to fraction form
    218,240.28/327,374.25 = 68,486.48/x
  3. Step 3: Cross multiply
    218,240.28x = 327,374.25 × 68,486.48
  4. Step 4: Simplify right side
    218,240.28x = 22,420,709,615.92
  5. Step 5: Solve for x
    x = 22,420,709,615.92/218,240.28
  6. Step 6: Final answer
    x = 102,734.06

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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.