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Finding the Fourth Proportional to 296,912.62, 445,365.14 and 72,273.26

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Solution

The fourth proportional to 296,912.62, 445,365.14 and 72,273.26 is: 108,408.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,912.62 : 445,365.14 = 72,273.26 : x
  2. Step 2: Convert to fraction form
    296,912.62/445,365.14 = 72,273.26/x
  3. Step 3: Cross multiply
    296,912.62x = 445,365.14 × 72,273.26
  4. Step 4: Simplify right side
    296,912.62x = 32,187,991,310.20
  5. Step 5: Solve for x
    x = 32,187,991,310.20/296,912.62
  6. Step 6: Final answer
    x = 108,408.97

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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.