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Finding the Fourth Proportional to 269,610.90, 404,744.40 and 136,422.60

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Solution

The fourth proportional to 269,610.90, 404,744.40 and 136,422.60 is: 204,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,610.90 : 404,744.40 = 136,422.60 : x
  2. Step 2: Convert to fraction form
    269,610.90/404,744.40 = 136,422.60/x
  3. Step 3: Cross multiply
    269,610.90x = 404,744.40 × 136,422.60
  4. Step 4: Simplify right side
    269,610.90x = 55,216,283,383.44
  5. Step 5: Solve for x
    x = 55,216,283,383.44/269,610.90
  6. Step 6: Final answer
    x = 204,799.89

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1.5x scale

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.