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Finding the Fourth Proportional to 188,620.69, 260,274.73 and 108,043.41

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Solution

The fourth proportional to 188,620.69, 260,274.73 and 108,043.41 is: 149,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,620.69 : 260,274.73 = 108,043.41 : x
  2. Step 2: Convert to fraction form
    188,620.69/260,274.73 = 108,043.41/x
  3. Step 3: Cross multiply
    188,620.69x = 260,274.73 × 108,043.41
  4. Step 4: Simplify right side
    188,620.69x = 28,120,969,366.03
  5. Step 5: Solve for x
    x = 28,120,969,366.03/188,620.69
  6. Step 6: Final answer
    x = 149,087.41

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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.