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Finding the Fourth Proportional to 79,408.34, 109,584.88 and 43,599.86

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Solution

The fourth proportional to 79,408.34, 109,584.88 and 43,599.86 is: 60,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,408.34 : 109,584.88 = 43,599.86 : x
  2. Step 2: Convert to fraction form
    79,408.34/109,584.88 = 43,599.86/x
  3. Step 3: Cross multiply
    79,408.34x = 109,584.88 × 43,599.86
  4. Step 4: Simplify right side
    79,408.34x = 4,777,885,426.12
  5. Step 5: Solve for x
    x = 4,777,885,426.12/79,408.34
  6. Step 6: Final answer
    x = 60,168.56

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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.