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Finding the Fourth Proportional to 79,408.58, 119,162.21 and 49,481.55

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Solution

The fourth proportional to 79,408.58, 119,162.21 and 49,481.55 is: 74,253.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,408.58 : 119,162.21 = 49,481.55 : x
  2. Step 2: Convert to fraction form
    79,408.58/119,162.21 = 49,481.55/x
  3. Step 3: Cross multiply
    79,408.58x = 119,162.21 × 49,481.55
  4. Step 4: Simplify right side
    79,408.58x = 5,896,330,604.82
  5. Step 5: Solve for x
    x = 5,896,330,604.82/79,408.58
  6. Step 6: Final answer
    x = 74,253.07

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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.