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Finding the Fourth Proportional to 269,794.40, 404,936.40 and 136,767.20

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Solution

The fourth proportional to 269,794.40, 404,936.40 and 136,767.20 is: 205,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,794.40 : 404,936.40 = 136,767.20 : x
  2. Step 2: Convert to fraction form
    269,794.40/404,936.40 = 136,767.20/x
  3. Step 3: Cross multiply
    269,794.40x = 404,936.40 × 136,767.20
  4. Step 4: Simplify right side
    269,794.40x = 55,382,017,606.08
  5. Step 5: Solve for x
    x = 55,382,017,606.08/269,794.40
  6. Step 6: Final answer
    x = 205,274.90

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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.