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Finding the Fourth Proportional to 317,442, 476,163 and 95,826

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Solution

The fourth proportional to 317,442, 476,163 and 95,826 is: 143,739

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,442 : 476,163 = 95,826 : x
  2. Step 2: Convert to fraction form
    317,442/476,163 = 95,826/x
  3. Step 3: Cross multiply
    317,442x = 476,163 × 95,826
  4. Step 4: Simplify right side
    317,442x = 45,628,795,638
  5. Step 5: Solve for x
    x = 45,628,795,638/317,442
  6. Step 6: Final answer
    x = 143,739

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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.