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Finding the Fourth Proportional to 281,674.14, 422,507.22 and 68,443.62

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Solution

The fourth proportional to 281,674.14, 422,507.22 and 68,443.62 is: 102,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,674.14 : 422,507.22 = 68,443.62 : x
  2. Step 2: Convert to fraction form
    281,674.14/422,507.22 = 68,443.62/x
  3. Step 3: Cross multiply
    281,674.14x = 422,507.22 × 68,443.62
  4. Step 4: Simplify right side
    281,674.14x = 28,917,923,612.94
  5. Step 5: Solve for x
    x = 28,917,923,612.94/281,674.14
  6. Step 6: Final answer
    x = 102,664.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.