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Finding the Fourth Proportional to 74,791.74, 103,205.43 and 41,255.58

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Solution

The fourth proportional to 74,791.74, 103,205.43 and 41,255.58 is: 56,928.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,791.74 : 103,205.43 = 41,255.58 : x
  2. Step 2: Convert to fraction form
    74,791.74/103,205.43 = 41,255.58/x
  3. Step 3: Cross multiply
    74,791.74x = 103,205.43 × 41,255.58
  4. Step 4: Simplify right side
    74,791.74x = 4,257,799,873.80
  5. Step 5: Solve for x
    x = 4,257,799,873.80/74,791.74
  6. Step 6: Final answer
    x = 56,928.74

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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.