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Finding the Fourth Proportional to 188,852.92, 260,661.36 and 108,279

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Solution

The fourth proportional to 188,852.92, 260,661.36 and 108,279 is: 149,450.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,852.92 : 260,661.36 = 108,279 : x
  2. Step 2: Convert to fraction form
    188,852.92/260,661.36 = 108,279/x
  3. Step 3: Cross multiply
    188,852.92x = 260,661.36 × 108,279
  4. Step 4: Simplify right side
    188,852.92x = 28,224,151,399.44
  5. Step 5: Solve for x
    x = 28,224,151,399.44/188,852.92
  6. Step 6: Final answer
    x = 149,450.44

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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.