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Finding the Fourth Proportional to 218,052.95, 327,206.33 and 91,684.04

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Solution

The fourth proportional to 218,052.95, 327,206.33 and 91,684.04 is: 137,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,052.95 : 327,206.33 = 91,684.04 : x
  2. Step 2: Convert to fraction form
    218,052.95/327,206.33 = 91,684.04/x
  3. Step 3: Cross multiply
    218,052.95x = 327,206.33 × 91,684.04
  4. Step 4: Simplify right side
    218,052.95x = 29,999,598,247.97
  5. Step 5: Solve for x
    x = 29,999,598,247.97/218,052.95
  6. Step 6: Final answer
    x = 137,579.42

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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.