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Finding the Fourth Proportional to 252,249.40, 377,855.70 and 127,660.60

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Solution

The fourth proportional to 252,249.40, 377,855.70 and 127,660.60 is: 191,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,249.40 : 377,855.70 = 127,660.60 : x
  2. Step 2: Convert to fraction form
    252,249.40/377,855.70 = 127,660.60/x
  3. Step 3: Cross multiply
    252,249.40x = 377,855.70 × 127,660.60
  4. Step 4: Simplify right side
    252,249.40x = 48,237,285,375.42
  5. Step 5: Solve for x
    x = 48,237,285,375.42/252,249.40
  6. Step 6: Final answer
    x = 191,228.54

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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.