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Finding the Fourth Proportional to 281,679.39, 422,223.83 and 104,073.12

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Solution

The fourth proportional to 281,679.39, 422,223.83 and 104,073.12 is: 156,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,679.39 : 422,223.83 = 104,073.12 : x
  2. Step 2: Convert to fraction form
    281,679.39/422,223.83 = 104,073.12/x
  3. Step 3: Cross multiply
    281,679.39x = 422,223.83 × 104,073.12
  4. Step 4: Simplify right side
    281,679.39x = 43,942,151,326.45
  5. Step 5: Solve for x
    x = 43,942,151,326.45/281,679.39
  6. Step 6: Final answer
    x = 156,000.59

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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.