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Finding the Fourth Proportional to 317,136.20, 475,774.25 and 92,514.20

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Solution

The fourth proportional to 317,136.20, 475,774.25 and 92,514.20 is: 138,791.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,136.20 : 475,774.25 = 92,514.20 : x
  2. Step 2: Convert to fraction form
    317,136.20/475,774.25 = 92,514.20/x
  3. Step 3: Cross multiply
    317,136.20x = 475,774.25 × 92,514.20
  4. Step 4: Simplify right side
    317,136.20x = 44,015,871,277.91
  5. Step 5: Solve for x
    x = 44,015,871,277.91/317,136.20
  6. Step 6: Final answer
    x = 138,791.70

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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.