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Finding the Fourth Proportional to 218,062.80, 327,115.80 and 75,886.20

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Solution

The fourth proportional to 218,062.80, 327,115.80 and 75,886.20 is: 113,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,062.80 : 327,115.80 = 75,886.20 : x
  2. Step 2: Convert to fraction form
    218,062.80/327,115.80 = 75,886.20/x
  3. Step 3: Cross multiply
    218,062.80x = 327,115.80 × 75,886.20
  4. Step 4: Simplify right side
    218,062.80x = 24,823,575,021.96
  5. Step 5: Solve for x
    x = 24,823,575,021.96/218,062.80
  6. Step 6: Final answer
    x = 113,836.82

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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.