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Finding the Fourth Proportional to 188,244.42, 259,781.49 and 103,361.82

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Solution

The fourth proportional to 188,244.42, 259,781.49 and 103,361.82 is: 142,641.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,244.42 : 259,781.49 = 103,361.82 : x
  2. Step 2: Convert to fraction form
    188,244.42/259,781.49 = 103,361.82/x
  3. Step 3: Cross multiply
    188,244.42x = 259,781.49 × 103,361.82
  4. Step 4: Simplify right side
    188,244.42x = 26,851,487,608.71
  5. Step 5: Solve for x
    x = 26,851,487,608.71/188,244.42
  6. Step 6: Final answer
    x = 142,641.61

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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.