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Finding the Fourth Proportional to 269,433.92, 404,072.80 and 91,936.96

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Solution

The fourth proportional to 269,433.92, 404,072.80 and 91,936.96 is: 137,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,433.92 : 404,072.80 = 91,936.96 : x
  2. Step 2: Convert to fraction form
    269,433.92/404,072.80 = 91,936.96/x
  3. Step 3: Cross multiply
    269,433.92x = 404,072.80 × 91,936.96
  4. Step 4: Simplify right side
    269,433.92x = 37,149,224,850.69
  5. Step 5: Solve for x
    x = 37,149,224,850.69/269,433.92
  6. Step 6: Final answer
    x = 137,878.80

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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.