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Finding the Fourth Proportional to 131,246,608.20, 196,869,912.30 and 131,246,608.20

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Solution

The fourth proportional to 131,246,608.20, 196,869,912.30 and 131,246,608.20 is: 196,869,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,246,608.20 : 196,869,912.30 = 131,246,608.20 : x
  2. Step 2: Convert to fraction form
    131,246,608.20/196,869,912.30 = 131,246,608.20/x
  3. Step 3: Cross multiply
    131,246,608.20x = 196,869,912.30 × 131,246,608.20
  4. Step 4: Simplify right side
    131,246,608.20x = 25,838,508,246,006,464
  5. Step 5: Solve for x
    x = 25,838,508,246,006,464/131,246,608.20
  6. Step 6: Final answer
    x = 196,869,912.30

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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.