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Finding the Fourth Proportional to 61,188.44, 91,785.34 and 16,819.56

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Solution

The fourth proportional to 61,188.44, 91,785.34 and 16,819.56 is: 25,230.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,188.44 : 91,785.34 = 16,819.56 : x
  2. Step 2: Convert to fraction form
    61,188.44/91,785.34 = 16,819.56/x
  3. Step 3: Cross multiply
    61,188.44x = 91,785.34 × 16,819.56
  4. Step 4: Simplify right side
    61,188.44x = 1,543,789,033.25
  5. Step 5: Solve for x
    x = 1,543,789,033.25/61,188.44
  6. Step 6: Final answer
    x = 25,230.08

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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.