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Finding the Fourth Proportional to 188,250.75, 259,787.86 and 103,369.64

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Solution

The fourth proportional to 188,250.75, 259,787.86 and 103,369.64 is: 142,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,250.75 : 259,787.86 = 103,369.64 : x
  2. Step 2: Convert to fraction form
    188,250.75/259,787.86 = 103,369.64/x
  3. Step 3: Cross multiply
    188,250.75x = 259,787.86 × 103,369.64
  4. Step 4: Simplify right side
    188,250.75x = 26,854,176,007.21
  5. Step 5: Solve for x
    x = 26,854,176,007.21/188,250.75
  6. Step 6: Final answer
    x = 142,651.10

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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.