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Finding the Fourth Proportional to 73,408.80, 110,113.20 and 54,819.30

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Solution

The fourth proportional to 73,408.80, 110,113.20 and 54,819.30 is: 82,228.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,408.80 : 110,113.20 = 54,819.30 : x
  2. Step 2: Convert to fraction form
    73,408.80/110,113.20 = 54,819.30/x
  3. Step 3: Cross multiply
    73,408.80x = 110,113.20 × 54,819.30
  4. Step 4: Simplify right side
    73,408.80x = 6,036,328,544.76
  5. Step 5: Solve for x
    x = 6,036,328,544.76/73,408.80
  6. Step 6: Final answer
    x = 82,228.95

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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.