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Finding the Fourth Proportional to 269,844.20, 404,420.70 and 207,204.20

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Solution

The fourth proportional to 269,844.20, 404,420.70 and 207,204.20 is: 310,540.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,844.20 : 404,420.70 = 207,204.20 : x
  2. Step 2: Convert to fraction form
    269,844.20/404,420.70 = 207,204.20/x
  3. Step 3: Cross multiply
    269,844.20x = 404,420.70 × 207,204.20
  4. Step 4: Simplify right side
    269,844.20x = 83,797,667,606.94
  5. Step 5: Solve for x
    x = 83,797,667,606.94/269,844.20
  6. Step 6: Final answer
    x = 310,540.93

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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.