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Finding the Fourth Proportional to 272,306.56, 375,780.97 and 149,796.30

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Solution

The fourth proportional to 272,306.56, 375,780.97 and 149,796.30 is: 206,717.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,306.56 : 375,780.97 = 149,796.30 : x
  2. Step 2: Convert to fraction form
    272,306.56/375,780.97 = 149,796.30/x
  3. Step 3: Cross multiply
    272,306.56x = 375,780.97 × 149,796.30
  4. Step 4: Simplify right side
    272,306.56x = 56,290,598,167.43
  5. Step 5: Solve for x
    x = 56,290,598,167.43/272,306.56
  6. Step 6: Final answer
    x = 206,717.75

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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.