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Finding the Fourth Proportional to 317,404.82, 476,110.02 and 80,747.75

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Solution

The fourth proportional to 317,404.82, 476,110.02 and 80,747.75 is: 121,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,404.82 : 476,110.02 = 80,747.75 : x
  2. Step 2: Convert to fraction form
    317,404.82/476,110.02 = 80,747.75/x
  3. Step 3: Cross multiply
    317,404.82x = 476,110.02 × 80,747.75
  4. Step 4: Simplify right side
    317,404.82x = 38,444,812,867.46
  5. Step 5: Solve for x
    x = 38,444,812,867.46/317,404.82
  6. Step 6: Final answer
    x = 121,122.33

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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.