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Finding the Fourth Proportional to 297,912.46, 446,616.78 and 129,306.06

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Solution

The fourth proportional to 297,912.46, 446,616.78 and 129,306.06 is: 193,849.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,912.46 : 446,616.78 = 129,306.06 : x
  2. Step 2: Convert to fraction form
    297,912.46/446,616.78 = 129,306.06/x
  3. Step 3: Cross multiply
    297,912.46x = 446,616.78 × 129,306.06
  4. Step 4: Simplify right side
    297,912.46x = 57,750,256,151.69
  5. Step 5: Solve for x
    x = 57,750,256,151.69/297,912.46
  6. Step 6: Final answer
    x = 193,849.75

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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.