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Finding the Fourth Proportional to 177,990.72, 267,170.60 and 119,236.96

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Solution

The fourth proportional to 177,990.72, 267,170.60 and 119,236.96 is: 178,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,990.72 : 267,170.60 = 119,236.96 : x
  2. Step 2: Convert to fraction form
    177,990.72/267,170.60 = 119,236.96/x
  3. Step 3: Cross multiply
    177,990.72x = 267,170.60 × 119,236.96
  4. Step 4: Simplify right side
    177,990.72x = 31,856,610,145.38
  5. Step 5: Solve for x
    x = 31,856,610,145.38/177,990.72
  6. Step 6: Final answer
    x = 178,979.05

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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.