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Finding the Fourth Proportional to 492,339.67, 738,634.04 and 137,353.42

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Solution

The fourth proportional to 492,339.67, 738,634.04 and 137,353.42 is: 206,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,339.67 : 738,634.04 = 137,353.42 : x
  2. Step 2: Convert to fraction form
    492,339.67/738,634.04 = 137,353.42/x
  3. Step 3: Cross multiply
    492,339.67x = 738,634.04 × 137,353.42
  4. Step 4: Simplify right side
    492,339.67x = 101,453,912,274.02
  5. Step 5: Solve for x
    x = 101,453,912,274.02/492,339.67
  6. Step 6: Final answer
    x = 206,064.88

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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.