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Finding the Fourth Proportional to 198,361.52, 273,737.92 and 107,716.72

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Solution

The fourth proportional to 198,361.52, 273,737.92 and 107,716.72 is: 148,648.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,361.52 : 273,737.92 = 107,716.72 : x
  2. Step 2: Convert to fraction form
    198,361.52/273,737.92 = 107,716.72/x
  3. Step 3: Cross multiply
    198,361.52x = 273,737.92 × 107,716.72
  4. Step 4: Simplify right side
    198,361.52x = 29,486,150,882.02
  5. Step 5: Solve for x
    x = 29,486,150,882.02/198,361.52
  6. Step 6: Final answer
    x = 148,648.54

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1.5x scale

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.