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Finding the Fourth Proportional to 207,608.49, 311,170.78 and 95,300.58

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Solution

The fourth proportional to 207,608.49, 311,170.78 and 95,300.58 is: 142,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,608.49 : 311,170.78 = 95,300.58 : x
  2. Step 2: Convert to fraction form
    207,608.49/311,170.78 = 95,300.58/x
  3. Step 3: Cross multiply
    207,608.49x = 311,170.78 × 95,300.58
  4. Step 4: Simplify right side
    207,608.49x = 29,654,755,813.05
  5. Step 5: Solve for x
    x = 29,654,755,813.05/207,608.49
  6. Step 6: Final answer
    x = 142,839.80

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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.