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Finding the Fourth Proportional to 317,751.08, 476,626.22 and 81,093.76

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Solution

The fourth proportional to 317,751.08, 476,626.22 and 81,093.76 is: 121,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,751.08 : 476,626.22 = 81,093.76 : x
  2. Step 2: Convert to fraction form
    317,751.08/476,626.22 = 81,093.76/x
  3. Step 3: Cross multiply
    317,751.08x = 476,626.22 × 81,093.76
  4. Step 4: Simplify right side
    317,751.08x = 38,651,412,294.39
  5. Step 5: Solve for x
    x = 38,651,412,294.39/317,751.08
  6. Step 6: Final answer
    x = 121,640.54

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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.