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Finding the Fourth Proportional to 126,859,105.80, 177,220,110.60 and 126,859,105.80

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Solution

The fourth proportional to 126,859,105.80, 177,220,110.60 and 126,859,105.80 is: 177,220,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,859,105.80 : 177,220,110.60 = 126,859,105.80 : x
  2. Step 2: Convert to fraction form
    126,859,105.80/177,220,110.60 = 126,859,105.80/x
  3. Step 3: Cross multiply
    126,859,105.80x = 177,220,110.60 × 126,859,105.80
  4. Step 4: Simplify right side
    126,859,105.80x = 22,481,984,760,493,100
  5. Step 5: Solve for x
    x = 22,481,984,760,493,100/126,859,105.80
  6. Step 6: Final answer
    x = 177,220,110.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.