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Finding the Fourth Proportional to 321,922.80, 482,692.20 and 197,353.20

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Solution

The fourth proportional to 321,922.80, 482,692.20 and 197,353.20 is: 295,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,922.80 : 482,692.20 = 197,353.20 : x
  2. Step 2: Convert to fraction form
    321,922.80/482,692.20 = 197,353.20/x
  3. Step 3: Cross multiply
    321,922.80x = 482,692.20 × 197,353.20
  4. Step 4: Simplify right side
    321,922.80x = 95,260,850,285.04
  5. Step 5: Solve for x
    x = 95,260,850,285.04/321,922.80
  6. Step 6: Final answer
    x = 295,912.10

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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.