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Finding the Fourth Proportional to 218,052.96, 327,206.33 and 91,684.05

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Solution

The fourth proportional to 218,052.96, 327,206.33 and 91,684.05 is: 137,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,052.96 : 327,206.33 = 91,684.05 : x
  2. Step 2: Convert to fraction form
    218,052.96/327,206.33 = 91,684.05/x
  3. Step 3: Cross multiply
    218,052.96x = 327,206.33 × 91,684.05
  4. Step 4: Simplify right side
    218,052.96x = 29,999,601,061.62
  5. Step 5: Solve for x
    x = 29,999,601,061.62/218,052.96
  6. Step 6: Final answer
    x = 137,579.43

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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.