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Finding the Fourth Proportional to 148,361.10, 204,738.03 and 80,379.77

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Solution

The fourth proportional to 148,361.10, 204,738.03 and 80,379.77 is: 110,923.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,361.10 : 204,738.03 = 80,379.77 : x
  2. Step 2: Convert to fraction form
    148,361.10/204,738.03 = 80,379.77/x
  3. Step 3: Cross multiply
    148,361.10x = 204,738.03 × 80,379.77
  4. Step 4: Simplify right side
    148,361.10x = 16,456,794,737.96
  5. Step 5: Solve for x
    x = 16,456,794,737.96/148,361.10
  6. Step 6: Final answer
    x = 110,923.92

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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.