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Finding the Fourth Proportional to 263,618.44, 395,424.60 and 105,844.12

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Solution

The fourth proportional to 263,618.44, 395,424.60 and 105,844.12 is: 158,764.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,618.44 : 395,424.60 = 105,844.12 : x
  2. Step 2: Convert to fraction form
    263,618.44/395,424.60 = 105,844.12/x
  3. Step 3: Cross multiply
    263,618.44x = 395,424.60 × 105,844.12
  4. Step 4: Simplify right side
    263,618.44x = 41,853,368,813.35
  5. Step 5: Solve for x
    x = 41,853,368,813.35/263,618.44
  6. Step 6: Final answer
    x = 158,764.95

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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.