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Finding the Fourth Proportional to 131,469.80, 197,204.70 and 48,396.20

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Solution

The fourth proportional to 131,469.80, 197,204.70 and 48,396.20 is: 72,594.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,469.80 : 197,204.70 = 48,396.20 : x
  2. Step 2: Convert to fraction form
    131,469.80/197,204.70 = 48,396.20/x
  3. Step 3: Cross multiply
    131,469.80x = 197,204.70 × 48,396.20
  4. Step 4: Simplify right side
    131,469.80x = 9,543,958,102.14
  5. Step 5: Solve for x
    x = 9,543,958,102.14/131,469.80
  6. Step 6: Final answer
    x = 72,594.30

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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.