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Finding the Fourth Proportional to 248,631.82, 372,879.46 and 68,674.21

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Solution

The fourth proportional to 248,631.82, 372,879.46 and 68,674.21 is: 102,992.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,631.82 : 372,879.46 = 68,674.21 : x
  2. Step 2: Convert to fraction form
    248,631.82/372,879.46 = 68,674.21/x
  3. Step 3: Cross multiply
    248,631.82x = 372,879.46 × 68,674.21
  4. Step 4: Simplify right side
    248,631.82x = 25,607,202,340.73
  5. Step 5: Solve for x
    x = 25,607,202,340.73/248,631.82
  6. Step 6: Final answer
    x = 102,992.46

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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.