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Finding the Fourth Proportional to 134,493.67, 185,675.79 and 80,791.75

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Solution

The fourth proportional to 134,493.67, 185,675.79 and 80,791.75 is: 111,537.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,493.67 : 185,675.79 = 80,791.75 : x
  2. Step 2: Convert to fraction form
    134,493.67/185,675.79 = 80,791.75/x
  3. Step 3: Cross multiply
    134,493.67x = 185,675.79 × 80,791.75
  4. Step 4: Simplify right side
    134,493.67x = 15,001,072,006.73
  5. Step 5: Solve for x
    x = 15,001,072,006.73/134,493.67
  6. Step 6: Final answer
    x = 111,537.38

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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.