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Finding the Fourth Proportional to 218,049.27, 327,200.27 and 91,679.55

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Solution

The fourth proportional to 218,049.27, 327,200.27 and 91,679.55 is: 137,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,049.27 : 327,200.27 = 91,679.55 : x
  2. Step 2: Convert to fraction form
    218,049.27/327,200.27 = 91,679.55/x
  3. Step 3: Cross multiply
    218,049.27x = 327,200.27 × 91,679.55
  4. Step 4: Simplify right side
    218,049.27x = 29,997,573,055.08
  5. Step 5: Solve for x
    x = 29,997,573,055.08/218,049.27
  6. Step 6: Final answer
    x = 137,572.45

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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.