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Finding the Fourth Proportional to 163,856.96, 245,556.94 and 123,843.09

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Solution

The fourth proportional to 163,856.96, 245,556.94 and 123,843.09 is: 185,591.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,856.96 : 245,556.94 = 123,843.09 : x
  2. Step 2: Convert to fraction form
    163,856.96/245,556.94 = 123,843.09/x
  3. Step 3: Cross multiply
    163,856.96x = 245,556.94 × 123,843.09
  4. Step 4: Simplify right side
    163,856.96x = 30,410,530,220.54
  5. Step 5: Solve for x
    x = 30,410,530,220.54/163,856.96
  6. Step 6: Final answer
    x = 185,591.93

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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.