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Finding the Fourth Proportional to 269,433.70, 404,112.15 and 91,948.90

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Solution

The fourth proportional to 269,433.70, 404,112.15 and 91,948.90 is: 137,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,433.70 : 404,112.15 = 91,948.90 : x
  2. Step 2: Convert to fraction form
    269,433.70/404,112.15 = 91,948.90/x
  3. Step 3: Cross multiply
    269,433.70x = 404,112.15 × 91,948.90
  4. Step 4: Simplify right side
    269,433.70x = 37,157,667,669.14
  5. Step 5: Solve for x
    x = 37,157,667,669.14/269,433.70
  6. Step 6: Final answer
    x = 137,910.25

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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.