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Finding the Fourth Proportional to 281,791.36, 422,738.88 and 92,262.34

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Solution

The fourth proportional to 281,791.36, 422,738.88 and 92,262.34 is: 138,410.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,791.36 : 422,738.88 = 92,262.34 : x
  2. Step 2: Convert to fraction form
    281,791.36/422,738.88 = 92,262.34/x
  3. Step 3: Cross multiply
    281,791.36x = 422,738.88 × 92,262.34
  4. Step 4: Simplify right side
    281,791.36x = 39,002,878,277.78
  5. Step 5: Solve for x
    x = 39,002,878,277.78/281,791.36
  6. Step 6: Final answer
    x = 138,410.48

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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.