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Finding the Fourth Proportional to 451,891.72, 677,855.24 and 136,348.68

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Solution

The fourth proportional to 451,891.72, 677,855.24 and 136,348.68 is: 204,528.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,891.72 : 677,855.24 = 136,348.68 : x
  2. Step 2: Convert to fraction form
    451,891.72/677,855.24 = 136,348.68/x
  3. Step 3: Cross multiply
    451,891.72x = 677,855.24 × 136,348.68
  4. Step 4: Simplify right side
    451,891.72x = 92,424,667,205.08
  5. Step 5: Solve for x
    x = 92,424,667,205.08/451,891.72
  6. Step 6: Final answer
    x = 204,528.35

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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.