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Finding the Fourth Proportional to 79,344.42, 109,494.45 and 43,534.42

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Solution

The fourth proportional to 79,344.42, 109,494.45 and 43,534.42 is: 60,077.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,344.42 : 109,494.45 = 43,534.42 : x
  2. Step 2: Convert to fraction form
    79,344.42/109,494.45 = 43,534.42/x
  3. Step 3: Cross multiply
    79,344.42x = 109,494.45 × 43,534.42
  4. Step 4: Simplify right side
    79,344.42x = 4,766,777,373.97
  5. Step 5: Solve for x
    x = 4,766,777,373.97/79,344.42
  6. Step 6: Final answer
    x = 60,077.03

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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.