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Finding the Fourth Proportional to 74,747.31, 103,067.49 and 61,092.97

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Solution

The fourth proportional to 74,747.31, 103,067.49 and 61,092.97 is: 84,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747.31 : 103,067.49 = 61,092.97 : x
  2. Step 2: Convert to fraction form
    74,747.31/103,067.49 = 61,092.97/x
  3. Step 3: Cross multiply
    74,747.31x = 103,067.49 × 61,092.97
  4. Step 4: Simplify right side
    74,747.31x = 6,296,699,074.55
  5. Step 5: Solve for x
    x = 6,296,699,074.55/74,747.31
  6. Step 6: Final answer
    x = 84,239.81

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1.5x scale

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.