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Finding the Fourth Proportional to 340,791.88, 511,415.34 and 119,175.88

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Solution

The fourth proportional to 340,791.88, 511,415.34 and 119,175.88 is: 178,843.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,791.88 : 511,415.34 = 119,175.88 : x
  2. Step 2: Convert to fraction form
    340,791.88/511,415.34 = 119,175.88/x
  3. Step 3: Cross multiply
    340,791.88x = 511,415.34 × 119,175.88
  4. Step 4: Simplify right side
    340,791.88x = 60,948,373,190.00
  5. Step 5: Solve for x
    x = 60,948,373,190.00/340,791.88
  6. Step 6: Final answer
    x = 178,843.38

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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.