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Finding the Fourth Proportional to 252,801,612.80, 379,202,419.20 and 195,405,984.80

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Solution

The fourth proportional to 252,801,612.80, 379,202,419.20 and 195,405,984.80 is: 293,108,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,801,612.80 : 379,202,419.20 = 195,405,984.80 : x
  2. Step 2: Convert to fraction form
    252,801,612.80/379,202,419.20 = 195,405,984.80/x
  3. Step 3: Cross multiply
    252,801,612.80x = 379,202,419.20 × 195,405,984.80
  4. Step 4: Simplify right side
    252,801,612.80x = 74,098,422,162,318,432
  5. Step 5: Solve for x
    x = 74,098,422,162,318,432/252,801,612.80
  6. Step 6: Final answer
    x = 293,108,977.20

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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.