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Finding the Fourth Proportional to 188,795.80, 260,502.24 and 120,760.66

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Solution

The fourth proportional to 188,795.80, 260,502.24 and 120,760.66 is: 166,626.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,795.80 : 260,502.24 = 120,760.66 : x
  2. Step 2: Convert to fraction form
    188,795.80/260,502.24 = 120,760.66/x
  3. Step 3: Cross multiply
    188,795.80x = 260,502.24 × 120,760.66
  4. Step 4: Simplify right side
    188,795.80x = 31,458,422,433.88
  5. Step 5: Solve for x
    x = 31,458,422,433.88/188,795.80
  6. Step 6: Final answer
    x = 166,626.71

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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.