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Finding the Fourth Proportional to 324,537.70, 486,576.15 and 124,780.90

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Solution

The fourth proportional to 324,537.70, 486,576.15 and 124,780.90 is: 187,082.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,537.70 : 486,576.15 = 124,780.90 : x
  2. Step 2: Convert to fraction form
    324,537.70/486,576.15 = 124,780.90/x
  3. Step 3: Cross multiply
    324,537.70x = 486,576.15 × 124,780.90
  4. Step 4: Simplify right side
    324,537.70x = 60,715,409,915.54
  5. Step 5: Solve for x
    x = 60,715,409,915.54/324,537.70
  6. Step 6: Final answer
    x = 187,082.76

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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.