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Finding the Fourth Proportional to 275,959,994.80, 414,227,101.69 and 203,258,866

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Solution

The fourth proportional to 275,959,994.80, 414,227,101.69 and 203,258,866 is: 305,099,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,959,994.80 : 414,227,101.69 = 203,258,866 : x
  2. Step 2: Convert to fraction form
    275,959,994.80/414,227,101.69 = 203,258,866/x
  3. Step 3: Cross multiply
    275,959,994.80x = 414,227,101.69 × 203,258,866
  4. Step 4: Simplify right side
    275,959,994.80x = 84,195,330,955,976,080
  5. Step 5: Solve for x
    x = 84,195,330,955,976,080/275,959,994.80
  6. Step 6: Final answer
    x = 305,099,770.05

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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.