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Finding the Fourth Proportional to 281,494.80, 422,194.68 and 79,044.48

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Solution

The fourth proportional to 281,494.80, 422,194.68 and 79,044.48 is: 118,553.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,494.80 : 422,194.68 = 79,044.48 : x
  2. Step 2: Convert to fraction form
    281,494.80/422,194.68 = 79,044.48/x
  3. Step 3: Cross multiply
    281,494.80x = 422,194.68 × 79,044.48
  4. Step 4: Simplify right side
    281,494.80x = 33,372,158,939.37
  5. Step 5: Solve for x
    x = 33,372,158,939.37/281,494.80
  6. Step 6: Final answer
    x = 118,553.38

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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.