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Finding the Fourth Proportional to 339,892.20, 510,129.90 and 150,643.80

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Solution

The fourth proportional to 339,892.20, 510,129.90 and 150,643.80 is: 226,094.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,892.20 : 510,129.90 = 150,643.80 : x
  2. Step 2: Convert to fraction form
    339,892.20/510,129.90 = 150,643.80/x
  3. Step 3: Cross multiply
    339,892.20x = 510,129.90 × 150,643.80
  4. Step 4: Simplify right side
    339,892.20x = 76,847,906,629.62
  5. Step 5: Solve for x
    x = 76,847,906,629.62/339,892.20
  6. Step 6: Final answer
    x = 226,094.94

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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.