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Finding the Fourth Proportional to 269,062.75, 371,306.60 and 155,951.11

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Solution

The fourth proportional to 269,062.75, 371,306.60 and 155,951.11 is: 215,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,062.75 : 371,306.60 = 155,951.11 : x
  2. Step 2: Convert to fraction form
    269,062.75/371,306.60 = 155,951.11/x
  3. Step 3: Cross multiply
    269,062.75x = 371,306.60 × 155,951.11
  4. Step 4: Simplify right side
    269,062.75x = 57,905,676,420.33
  5. Step 5: Solve for x
    x = 57,905,676,420.33/269,062.75
  6. Step 6: Final answer
    x = 215,212.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.