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Finding the Fourth Proportional to 269,418.80, 404,128.20 and 202,496.60

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Solution

The fourth proportional to 269,418.80, 404,128.20 and 202,496.60 is: 303,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,418.80 : 404,128.20 = 202,496.60 : x
  2. Step 2: Convert to fraction form
    269,418.80/404,128.20 = 202,496.60/x
  3. Step 3: Cross multiply
    269,418.80x = 404,128.20 × 202,496.60
  4. Step 4: Simplify right side
    269,418.80x = 81,834,586,464.12
  5. Step 5: Solve for x
    x = 81,834,586,464.12/269,418.80
  6. Step 6: Final answer
    x = 303,744.90

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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.