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Finding the Fourth Proportional to 379,397.66, 568,930.41 and 113,105.12

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Solution

The fourth proportional to 379,397.66, 568,930.41 and 113,105.12 is: 169,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,397.66 : 568,930.41 = 113,105.12 : x
  2. Step 2: Convert to fraction form
    379,397.66/568,930.41 = 113,105.12/x
  3. Step 3: Cross multiply
    379,397.66x = 568,930.41 × 113,105.12
  4. Step 4: Simplify right side
    379,397.66x = 64,348,942,294.70
  5. Step 5: Solve for x
    x = 64,348,942,294.70/379,397.66
  6. Step 6: Final answer
    x = 169,608.17

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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.