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Finding the Fourth Proportional to 79,333.80, 109,481.76 and 43,523.16

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Solution

The fourth proportional to 79,333.80, 109,481.76 and 43,523.16 is: 60,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,333.80 : 109,481.76 = 43,523.16 : x
  2. Step 2: Convert to fraction form
    79,333.80/109,481.76 = 43,523.16/x
  3. Step 3: Cross multiply
    79,333.80x = 109,481.76 × 43,523.16
  4. Step 4: Simplify right side
    79,333.80x = 4,764,992,157.56
  5. Step 5: Solve for x
    x = 4,764,992,157.56/79,333.80
  6. Step 6: Final answer
    x = 60,062.57

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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.