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Finding the Fourth Proportional to 339,098.20, 508,938.90 and 149,849.80

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Solution

The fourth proportional to 339,098.20, 508,938.90 and 149,849.80 is: 224,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,098.20 : 508,938.90 = 149,849.80 : x
  2. Step 2: Convert to fraction form
    339,098.20/508,938.90 = 149,849.80/x
  3. Step 3: Cross multiply
    339,098.20x = 508,938.90 × 149,849.80
  4. Step 4: Simplify right side
    339,098.20x = 76,264,392,377.22
  5. Step 5: Solve for x
    x = 76,264,392,377.22/339,098.20
  6. Step 6: Final answer
    x = 224,903.56

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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.