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Finding the Fourth Proportional to 218,299,872.80, 327,449,809.20 and 88,840,845.20

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Solution

The fourth proportional to 218,299,872.80, 327,449,809.20 and 88,840,845.20 is: 133,261,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,299,872.80 : 327,449,809.20 = 88,840,845.20 : x
  2. Step 2: Convert to fraction form
    218,299,872.80/327,449,809.20 = 88,840,845.20/x
  3. Step 3: Cross multiply
    218,299,872.80x = 327,449,809.20 × 88,840,845.20
  4. Step 4: Simplify right side
    218,299,872.80x = 29,090,917,809,906,736
  5. Step 5: Solve for x
    x = 29,090,917,809,906,736/218,299,872.80
  6. Step 6: Final answer
    x = 133,261,267.80

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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.