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Finding the Fourth Proportional to 281,679.78, 422,224.42 and 104,073.51

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Solution

The fourth proportional to 281,679.78, 422,224.42 and 104,073.51 is: 156,001.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,679.78 : 422,224.42 = 104,073.51 : x
  2. Step 2: Convert to fraction form
    281,679.78/422,224.42 = 104,073.51/x
  3. Step 3: Cross multiply
    281,679.78x = 422,224.42 × 104,073.51
  4. Step 4: Simplify right side
    281,679.78x = 43,942,377,136.93
  5. Step 5: Solve for x
    x = 43,942,377,136.93/281,679.78
  6. Step 6: Final answer
    x = 156,001.18

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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.