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Finding the Fourth Proportional to 269,431.97, 404,189.46 and 91,897.49

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Solution

The fourth proportional to 269,431.97, 404,189.46 and 91,897.49 is: 137,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,431.97 : 404,189.46 = 91,897.49 : x
  2. Step 2: Convert to fraction form
    269,431.97/404,189.46 = 91,897.49/x
  3. Step 3: Cross multiply
    269,431.97x = 404,189.46 × 91,897.49
  4. Step 4: Simplify right side
    269,431.97x = 37,143,997,868.93
  5. Step 5: Solve for x
    x = 37,143,997,868.93/269,431.97
  6. Step 6: Final answer
    x = 137,860.40

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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.