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Finding the Fourth Proportional to 178,371.90, 267,687.45 and 73,266.30

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Solution

The fourth proportional to 178,371.90, 267,687.45 and 73,266.30 is: 109,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,371.90 : 267,687.45 = 73,266.30 : x
  2. Step 2: Convert to fraction form
    178,371.90/267,687.45 = 73,266.30/x
  3. Step 3: Cross multiply
    178,371.90x = 267,687.45 × 73,266.30
  4. Step 4: Simplify right side
    178,371.90x = 19,612,469,017.94
  5. Step 5: Solve for x
    x = 19,612,469,017.94/178,371.90
  6. Step 6: Final answer
    x = 109,952.68

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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.