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Finding the Fourth Proportional to 275,136.75, 379,568.43 and 194,633.28

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Solution

The fourth proportional to 275,136.75, 379,568.43 and 194,633.28 is: 268,508.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,136.75 : 379,568.43 = 194,633.28 : x
  2. Step 2: Convert to fraction form
    275,136.75/379,568.43 = 194,633.28/x
  3. Step 3: Cross multiply
    275,136.75x = 379,568.43 × 194,633.28
  4. Step 4: Simplify right side
    275,136.75x = 73,876,648,515.35
  5. Step 5: Solve for x
    x = 73,876,648,515.35/275,136.75
  6. Step 6: Final answer
    x = 268,508.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.