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Finding the Fourth Proportional to 422,736.33, 634,126.77 and 107,195.97

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Solution

The fourth proportional to 422,736.33, 634,126.77 and 107,195.97 is: 160,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,736.33 : 634,126.77 = 107,195.97 : x
  2. Step 2: Convert to fraction form
    422,736.33/634,126.77 = 107,195.97/x
  3. Step 3: Cross multiply
    422,736.33x = 634,126.77 × 107,195.97
  4. Step 4: Simplify right side
    422,736.33x = 67,975,834,213.12
  5. Step 5: Solve for x
    x = 67,975,834,213.12/422,736.33
  6. Step 6: Final answer
    x = 160,799.60

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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.