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Finding the Fourth Proportional to 221,227.96, 331,842.18 and 55,015.96

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Solution

The fourth proportional to 221,227.96, 331,842.18 and 55,015.96 is: 82,524.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,227.96 : 331,842.18 = 55,015.96 : x
  2. Step 2: Convert to fraction form
    221,227.96/331,842.18 = 55,015.96/x
  3. Step 3: Cross multiply
    221,227.96x = 331,842.18 × 55,015.96
  4. Step 4: Simplify right side
    221,227.96x = 18,256,616,101.19
  5. Step 5: Solve for x
    x = 18,256,616,101.19/221,227.96
  6. Step 6: Final answer
    x = 82,524.00

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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.