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Finding the Fourth Proportional to 192,376.92, 265,481.03 and 105,163.82

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Solution

The fourth proportional to 192,376.92, 265,481.03 and 105,163.82 is: 145,126.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,376.92 : 265,481.03 = 105,163.82 : x
  2. Step 2: Convert to fraction form
    192,376.92/265,481.03 = 105,163.82/x
  3. Step 3: Cross multiply
    192,376.92x = 265,481.03 × 105,163.82
  4. Step 4: Simplify right side
    192,376.92x = 27,918,999,252.33
  5. Step 5: Solve for x
    x = 27,918,999,252.33/192,376.92
  6. Step 6: Final answer
    x = 145,126.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.