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Finding the Fourth Proportional to 226,791.77, 312,992.10 and 124,837.47

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Solution

The fourth proportional to 226,791.77, 312,992.10 and 124,837.47 is: 172,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,791.77 : 312,992.10 = 124,837.47 : x
  2. Step 2: Convert to fraction form
    226,791.77/312,992.10 = 124,837.47/x
  3. Step 3: Cross multiply
    226,791.77x = 312,992.10 × 124,837.47
  4. Step 4: Simplify right side
    226,791.77x = 39,073,141,893.99
  5. Step 5: Solve for x
    x = 39,073,141,893.99/226,791.77
  6. Step 6: Final answer
    x = 172,286.42

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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.