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Finding the Fourth Proportional to 339,600.39, 509,371.20 and 114,956.03

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Solution

The fourth proportional to 339,600.39, 509,371.20 and 114,956.03 is: 172,424.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,600.39 : 509,371.20 = 114,956.03 : x
  2. Step 2: Convert to fraction form
    339,600.39/509,371.20 = 114,956.03/x
  3. Step 3: Cross multiply
    339,600.39x = 509,371.20 × 114,956.03
  4. Step 4: Simplify right side
    339,600.39x = 58,555,288,401.48
  5. Step 5: Solve for x
    x = 58,555,288,401.48/339,600.39
  6. Step 6: Final answer
    x = 172,424.09

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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.