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Finding the Fourth Proportional to 188,568.25, 260,231.48 and 103,683.49

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Solution

The fourth proportional to 188,568.25, 260,231.48 and 103,683.49 is: 143,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,568.25 : 260,231.48 = 103,683.49 : x
  2. Step 2: Convert to fraction form
    188,568.25/260,231.48 = 103,683.49/x
  3. Step 3: Cross multiply
    188,568.25x = 260,231.48 × 103,683.49
  4. Step 4: Simplify right side
    188,568.25x = 26,981,707,535.85
  5. Step 5: Solve for x
    x = 26,981,707,535.85/188,568.25
  6. Step 6: Final answer
    x = 143,087.22

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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.