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Finding the Fourth Proportional to 275,193.05, 379,769.59 and 152,687.73

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Solution

The fourth proportional to 275,193.05, 379,769.59 and 152,687.73 is: 210,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,193.05 : 379,769.59 = 152,687.73 : x
  2. Step 2: Convert to fraction form
    275,193.05/379,769.59 = 152,687.73/x
  3. Step 3: Cross multiply
    275,193.05x = 379,769.59 × 152,687.73
  4. Step 4: Simplify right side
    275,193.05x = 57,986,156,620.13
  5. Step 5: Solve for x
    x = 57,986,156,620.13/275,193.05
  6. Step 6: Final answer
    x = 210,710.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.