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Finding the Fourth Proportional to 275,933.26, 380,796.87 and 155,097.82

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Solution

The fourth proportional to 275,933.26, 380,796.87 and 155,097.82 is: 214,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,933.26 : 380,796.87 = 155,097.82 : x
  2. Step 2: Convert to fraction form
    275,933.26/380,796.87 = 155,097.82/x
  3. Step 3: Cross multiply
    275,933.26x = 380,796.87 × 155,097.82
  4. Step 4: Simplify right side
    275,933.26x = 59,060,764,399.82
  5. Step 5: Solve for x
    x = 59,060,764,399.82/275,933.26
  6. Step 6: Final answer
    x = 214,040.03

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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.