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Finding the Fourth Proportional to 218,439.56, 327,714.02 and 68,673.80

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Solution

The fourth proportional to 218,439.56, 327,714.02 and 68,673.80 is: 103,027.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,439.56 : 327,714.02 = 68,673.80 : x
  2. Step 2: Convert to fraction form
    218,439.56/327,714.02 = 68,673.80/x
  3. Step 3: Cross multiply
    218,439.56x = 327,714.02 × 68,673.80
  4. Step 4: Simplify right side
    218,439.56x = 22,505,367,066.68
  5. Step 5: Solve for x
    x = 22,505,367,066.68/218,439.56
  6. Step 6: Final answer
    x = 103,027.89

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1.5x scale

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.