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Finding the Fourth Proportional to 188,550.78, 260,194.60 and 106,886.61

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Solution

The fourth proportional to 188,550.78, 260,194.60 and 106,886.61 is: 147,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,550.78 : 260,194.60 = 106,886.61 : x
  2. Step 2: Convert to fraction form
    188,550.78/260,194.60 = 106,886.61/x
  3. Step 3: Cross multiply
    188,550.78x = 260,194.60 × 106,886.61
  4. Step 4: Simplify right side
    188,550.78x = 27,811,317,950.21
  5. Step 5: Solve for x
    x = 27,811,317,950.21/188,550.78
  6. Step 6: Final answer
    x = 147,500.41

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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.