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Finding the Fourth Proportional to 79,408.35, 119,000.53 and 43,885.66

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Solution

The fourth proportional to 79,408.35, 119,000.53 and 43,885.66 is: 65,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,408.35 : 119,000.53 = 43,885.66 : x
  2. Step 2: Convert to fraction form
    79,408.35/119,000.53 = 43,885.66/x
  3. Step 3: Cross multiply
    79,408.35x = 119,000.53 × 43,885.66
  4. Step 4: Simplify right side
    79,408.35x = 5,222,416,799.40
  5. Step 5: Solve for x
    x = 5,222,416,799.40/79,408.35
  6. Step 6: Final answer
    x = 65,766.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.