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Finding the Fourth Proportional to 218,370.70, 327,389.58 and 68,524.56

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Solution

The fourth proportional to 218,370.70, 327,389.58 and 68,524.56 is: 102,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,370.70 : 327,389.58 = 68,524.56 : x
  2. Step 2: Convert to fraction form
    218,370.70/327,389.58 = 68,524.56/x
  3. Step 3: Cross multiply
    218,370.70x = 327,389.58 × 68,524.56
  4. Step 4: Simplify right side
    218,370.70x = 22,434,226,918.08
  5. Step 5: Solve for x
    x = 22,434,226,918.08/218,370.70
  6. Step 6: Final answer
    x = 102,734.60

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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.