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Finding the Fourth Proportional to 218,136.80, 327,226.80 and 75,960.20

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Solution

The fourth proportional to 218,136.80, 327,226.80 and 75,960.20 is: 113,947.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,136.80 : 327,226.80 = 75,960.20 : x
  2. Step 2: Convert to fraction form
    218,136.80/327,226.80 = 75,960.20/x
  3. Step 3: Cross multiply
    218,136.80x = 327,226.80 × 75,960.20
  4. Step 4: Simplify right side
    218,136.80x = 24,856,213,173.36
  5. Step 5: Solve for x
    x = 24,856,213,173.36/218,136.80
  6. Step 6: Final answer
    x = 113,947.82

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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.