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Finding the Fourth Proportional to 178,958.68, 267,853.90 and 131,561.22

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Solution

The fourth proportional to 178,958.68, 267,853.90 and 131,561.22 is: 196,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,958.68 : 267,853.90 = 131,561.22 : x
  2. Step 2: Convert to fraction form
    178,958.68/267,853.90 = 131,561.22/x
  3. Step 3: Cross multiply
    178,958.68x = 267,853.90 × 131,561.22
  4. Step 4: Simplify right side
    178,958.68x = 35,239,185,536.86
  5. Step 5: Solve for x
    x = 35,239,185,536.86/178,958.68
  6. Step 6: Final answer
    x = 196,912.42

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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.