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Finding the Fourth Proportional to 61,192.20, 91,815.81 and 33,079.32

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Solution

The fourth proportional to 61,192.20, 91,815.81 and 33,079.32 is: 49,633.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,192.20 : 91,815.81 = 33,079.32 : x
  2. Step 2: Convert to fraction form
    61,192.20/91,815.81 = 33,079.32/x
  3. Step 3: Cross multiply
    61,192.20x = 91,815.81 × 33,079.32
  4. Step 4: Simplify right side
    61,192.20x = 3,037,204,560.05
  5. Step 5: Solve for x
    x = 3,037,204,560.05/61,192.20
  6. Step 6: Final answer
    x = 49,633.85

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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.