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Finding the Fourth Proportional to 188,960.31, 260,764.11 and 104,077.44

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Solution

The fourth proportional to 188,960.31, 260,764.11 and 104,077.44 is: 143,626.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,960.31 : 260,764.11 = 104,077.44 : x
  2. Step 2: Convert to fraction form
    188,960.31/260,764.11 = 104,077.44/x
  3. Step 3: Cross multiply
    188,960.31x = 260,764.11 × 104,077.44
  4. Step 4: Simplify right side
    188,960.31x = 27,139,661,012.68
  5. Step 5: Solve for x
    x = 27,139,661,012.68/188,960.31
  6. Step 6: Final answer
    x = 143,626.25

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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.