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Finding the Fourth Proportional to 188,351.44, 259,925.16 and 103,474

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Solution

The fourth proportional to 188,351.44, 259,925.16 and 103,474 is: 142,794.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,351.44 : 259,925.16 = 103,474 : x
  2. Step 2: Convert to fraction form
    188,351.44/259,925.16 = 103,474/x
  3. Step 3: Cross multiply
    188,351.44x = 259,925.16 × 103,474
  4. Step 4: Simplify right side
    188,351.44x = 26,895,496,005.84
  5. Step 5: Solve for x
    x = 26,895,496,005.84/188,351.44
  6. Step 6: Final answer
    x = 142,794.21

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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.