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Finding the Fourth Proportional to 61,249.26, 91,687.31 and 49,291.84

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Solution

The fourth proportional to 61,249.26, 91,687.31 and 49,291.84 is: 73,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,249.26 : 91,687.31 = 49,291.84 : x
  2. Step 2: Convert to fraction form
    61,249.26/91,687.31 = 49,291.84/x
  3. Step 3: Cross multiply
    61,249.26x = 91,687.31 × 49,291.84
  4. Step 4: Simplify right side
    61,249.26x = 4,519,436,267.54
  5. Step 5: Solve for x
    x = 4,519,436,267.54/61,249.26
  6. Step 6: Final answer
    x = 73,787.60

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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.