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Finding the Fourth Proportional to 166,832.18, 230,231.40 and 91,375.82

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Solution

The fourth proportional to 166,832.18, 230,231.40 and 91,375.82 is: 126,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,832.18 : 230,231.40 = 91,375.82 : x
  2. Step 2: Convert to fraction form
    166,832.18/230,231.40 = 91,375.82/x
  3. Step 3: Cross multiply
    166,832.18x = 230,231.40 × 91,375.82
  4. Step 4: Simplify right side
    166,832.18x = 21,037,582,964.75
  5. Step 5: Solve for x
    x = 21,037,582,964.75/166,832.18
  6. Step 6: Final answer
    x = 126,100.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.