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Finding the Fourth Proportional to 269,580.40, 404,313.90 and 136,335.40

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Solution

The fourth proportional to 269,580.40, 404,313.90 and 136,335.40 is: 204,474.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,580.40 : 404,313.90 = 136,335.40 : x
  2. Step 2: Convert to fraction form
    269,580.40/404,313.90 = 136,335.40/x
  3. Step 3: Cross multiply
    269,580.40x = 404,313.90 × 136,335.40
  4. Step 4: Simplify right side
    269,580.40x = 55,122,297,282.06
  5. Step 5: Solve for x
    x = 55,122,297,282.06/269,580.40
  6. Step 6: Final answer
    x = 204,474.43

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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.