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Finding the Fourth Proportional to 188,759.88, 260,494.83 and 108,202.65

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Solution

The fourth proportional to 188,759.88, 260,494.83 and 108,202.65 is: 149,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,759.88 : 260,494.83 = 108,202.65 : x
  2. Step 2: Convert to fraction form
    188,759.88/260,494.83 = 108,202.65/x
  3. Step 3: Cross multiply
    188,759.88x = 260,494.83 × 108,202.65
  4. Step 4: Simplify right side
    188,759.88x = 28,186,230,917.30
  5. Step 5: Solve for x
    x = 28,186,230,917.30/188,759.88
  6. Step 6: Final answer
    x = 149,323.21

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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.