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Finding the Fourth Proportional to 79,561.46, 109,791.97 and 43,751.15

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Solution

The fourth proportional to 79,561.46, 109,791.97 and 43,751.15 is: 60,375.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,561.46 : 109,791.97 = 43,751.15 : x
  2. Step 2: Convert to fraction form
    79,561.46/109,791.97 = 43,751.15/x
  3. Step 3: Cross multiply
    79,561.46x = 109,791.97 × 43,751.15
  4. Step 4: Simplify right side
    79,561.46x = 4,803,525,113.37
  5. Step 5: Solve for x
    x = 4,803,525,113.37/79,561.46
  6. Step 6: Final answer
    x = 60,375.03

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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.