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Finding the Fourth Proportional to 252,834.40, 379,137.39 and 134,480.44

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Solution

The fourth proportional to 252,834.40, 379,137.39 and 134,480.44 is: 201,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,834.40 : 379,137.39 = 134,480.44 : x
  2. Step 2: Convert to fraction form
    252,834.40/379,137.39 = 134,480.44/x
  3. Step 3: Cross multiply
    252,834.40x = 379,137.39 × 134,480.44
  4. Step 4: Simplify right side
    252,834.40x = 50,986,563,027.65
  5. Step 5: Solve for x
    x = 50,986,563,027.65/252,834.40
  6. Step 6: Final answer
    x = 201,659.91

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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.