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Finding the Fourth Proportional to 218,458.73, 327,815.46 and 92,091.23

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Solution

The fourth proportional to 218,458.73, 327,815.46 and 92,091.23 is: 138,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,458.73 : 327,815.46 = 92,091.23 : x
  2. Step 2: Convert to fraction form
    218,458.73/327,815.46 = 92,091.23/x
  3. Step 3: Cross multiply
    218,458.73x = 327,815.46 × 92,091.23
  4. Step 4: Simplify right side
    218,458.73x = 30,188,928,924.42
  5. Step 5: Solve for x
    x = 30,188,928,924.42/218,458.73
  6. Step 6: Final answer
    x = 138,190.54

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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.