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Finding the Fourth Proportional to 178,860.89, 267,929.03 and 82,661.42

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Solution

The fourth proportional to 178,860.89, 267,929.03 and 82,661.42 is: 123,824.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,860.89 : 267,929.03 = 82,661.42 : x
  2. Step 2: Convert to fraction form
    178,860.89/267,929.03 = 82,661.42/x
  3. Step 3: Cross multiply
    178,860.89x = 267,929.03 × 82,661.42
  4. Step 4: Simplify right side
    178,860.89x = 22,147,394,983.55
  5. Step 5: Solve for x
    x = 22,147,394,983.55/178,860.89
  6. Step 6: Final answer
    x = 123,824.69

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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.