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Finding the Fourth Proportional to 79,408.40, 109,583.81 and 43,600.73

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Solution

The fourth proportional to 79,408.40, 109,583.81 and 43,600.73 is: 60,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,408.40 : 109,583.81 = 43,600.73 : x
  2. Step 2: Convert to fraction form
    79,408.40/109,583.81 = 43,600.73/x
  3. Step 3: Cross multiply
    79,408.40x = 109,583.81 × 43,600.73
  4. Step 4: Simplify right side
    79,408.40x = 4,777,934,112.18
  5. Step 5: Solve for x
    x = 4,777,934,112.18/79,408.40
  6. Step 6: Final answer
    x = 60,169.13

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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.