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Finding the Fourth Proportional to 317,418.39, 476,163.72 and 115,109.82

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Solution

The fourth proportional to 317,418.39, 476,163.72 and 115,109.82 is: 172,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,418.39 : 476,163.72 = 115,109.82 : x
  2. Step 2: Convert to fraction form
    317,418.39/476,163.72 = 115,109.82/x
  3. Step 3: Cross multiply
    317,418.39x = 476,163.72 × 115,109.82
  4. Step 4: Simplify right side
    317,418.39x = 54,811,120,099.73
  5. Step 5: Solve for x
    x = 54,811,120,099.73/317,418.39
  6. Step 6: Final answer
    x = 172,677.83

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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.