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Finding the Fourth Proportional to 79,601.41, 109,849.14 and 43,791.49

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Solution

The fourth proportional to 79,601.41, 109,849.14 and 43,791.49 is: 60,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,601.41 : 109,849.14 = 43,791.49 : x
  2. Step 2: Convert to fraction form
    79,601.41/109,849.14 = 43,791.49/x
  3. Step 3: Cross multiply
    79,601.41x = 109,849.14 × 43,791.49
  4. Step 4: Simplify right side
    79,601.41x = 4,810,457,515.82
  5. Step 5: Solve for x
    x = 4,810,457,515.82/79,601.41
  6. Step 6: Final answer
    x = 60,431.81

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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.