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Finding the Fourth Proportional to 269,827.20, 404,395.20 and 207,187.20

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Solution

The fourth proportional to 269,827.20, 404,395.20 and 207,187.20 is: 310,515.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,827.20 : 404,395.20 = 207,187.20 : x
  2. Step 2: Convert to fraction form
    269,827.20/404,395.20 = 207,187.20/x
  3. Step 3: Cross multiply
    269,827.20x = 404,395.20 × 207,187.20
  4. Step 4: Simplify right side
    269,827.20x = 83,785,509,181.44
  5. Step 5: Solve for x
    x = 83,785,509,181.44/269,827.20
  6. Step 6: Final answer
    x = 310,515.43

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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.