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Finding the Fourth Proportional to 269,418.94, 404,377.68 and 136,392.64

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Solution

The fourth proportional to 269,418.94, 404,377.68 and 136,392.64 is: 204,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,418.94 : 404,377.68 = 136,392.64 : x
  2. Step 2: Convert to fraction form
    269,418.94/404,377.68 = 136,392.64/x
  3. Step 3: Cross multiply
    269,418.94x = 404,377.68 × 136,392.64
  4. Step 4: Simplify right side
    269,418.94x = 55,154,139,332.28
  5. Step 5: Solve for x
    x = 55,154,139,332.28/269,418.94
  6. Step 6: Final answer
    x = 204,715.15

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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.