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Finding the Fourth Proportional to 220,766,408.70, 331,198,086.69 and 65,308,046.46

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Solution

The fourth proportional to 220,766,408.70, 331,198,086.69 and 65,308,046.46 is: 97,976,409.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,766,408.70 : 331,198,086.69 = 65,308,046.46 : x
  2. Step 2: Convert to fraction form
    220,766,408.70/331,198,086.69 = 65,308,046.46/x
  3. Step 3: Cross multiply
    220,766,408.70x = 331,198,086.69 × 65,308,046.46
  4. Step 4: Simplify right side
    220,766,408.70x = 21,629,900,033,013,628
  5. Step 5: Solve for x
    x = 21,629,900,033,013,628/220,766,408.70
  6. Step 6: Final answer
    x = 97,976,409.37

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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.