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Finding the Fourth Proportional to 269,366.85, 371,728.89 and 148,512.87

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Solution

The fourth proportional to 269,366.85, 371,728.89 and 148,512.87 is: 204,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,366.85 : 371,728.89 = 148,512.87 : x
  2. Step 2: Convert to fraction form
    269,366.85/371,728.89 = 148,512.87/x
  3. Step 3: Cross multiply
    269,366.85x = 371,728.89 × 148,512.87
  4. Step 4: Simplify right side
    269,366.85x = 55,206,524,315.81
  5. Step 5: Solve for x
    x = 55,206,524,315.81/269,366.85
  6. Step 6: Final answer
    x = 204,949.21

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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.