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Finding the Fourth Proportional to 274,023.45, 411,243.35 and 220,845.33

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Solution

The fourth proportional to 274,023.45, 411,243.35 and 220,845.33 is: 331,435.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,023.45 : 411,243.35 = 220,845.33 : x
  2. Step 2: Convert to fraction form
    274,023.45/411,243.35 = 220,845.33/x
  3. Step 3: Cross multiply
    274,023.45x = 411,243.35 × 220,845.33
  4. Step 4: Simplify right side
    274,023.45x = 90,821,172,236.83
  5. Step 5: Solve for x
    x = 90,821,172,236.83/274,023.45
  6. Step 6: Final answer
    x = 331,435.77

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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.