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Finding the Fourth Proportional to 317,396.13, 476,091.99 and 80,736.72

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Solution

The fourth proportional to 317,396.13, 476,091.99 and 80,736.72 is: 121,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,396.13 : 476,091.99 = 80,736.72 : x
  2. Step 2: Convert to fraction form
    317,396.13/476,091.99 = 80,736.72/x
  3. Step 3: Cross multiply
    317,396.13x = 476,091.99 × 80,736.72
  4. Step 4: Simplify right side
    317,396.13x = 38,438,105,690.87
  5. Step 5: Solve for x
    x = 38,438,105,690.87/317,396.13
  6. Step 6: Final answer
    x = 121,104.52

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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.