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Finding the Fourth Proportional to 188,361.66, 259,942.77 and 103,481.94

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Solution

The fourth proportional to 188,361.66, 259,942.77 and 103,481.94 is: 142,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,361.66 : 259,942.77 = 103,481.94 : x
  2. Step 2: Convert to fraction form
    188,361.66/259,942.77 = 103,481.94/x
  3. Step 3: Cross multiply
    188,361.66x = 259,942.77 × 103,481.94
  4. Step 4: Simplify right side
    188,361.66x = 26,899,382,128.57
  5. Step 5: Solve for x
    x = 26,899,382,128.57/188,361.66
  6. Step 6: Final answer
    x = 142,807.10

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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.