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Finding the Fourth Proportional to 223,791.44, 308,832.18 and 123,189.44

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Solution

The fourth proportional to 223,791.44, 308,832.18 and 123,189.44 is: 170,001.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,791.44 : 308,832.18 = 123,189.44 : x
  2. Step 2: Convert to fraction form
    223,791.44/308,832.18 = 123,189.44/x
  3. Step 3: Cross multiply
    223,791.44x = 308,832.18 × 123,189.44
  4. Step 4: Simplify right side
    223,791.44x = 38,044,863,308.18
  5. Step 5: Solve for x
    x = 38,044,863,308.18/223,791.44
  6. Step 6: Final answer
    x = 170,001.42

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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.