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Finding the Fourth Proportional to 222,044.45, 333,197.89 and 81,901.49

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Solution

The fourth proportional to 222,044.45, 333,197.89 and 81,901.49 is: 122,900.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,044.45 : 333,197.89 = 81,901.49 : x
  2. Step 2: Convert to fraction form
    222,044.45/333,197.89 = 81,901.49/x
  3. Step 3: Cross multiply
    222,044.45x = 333,197.89 × 81,901.49
  4. Step 4: Simplify right side
    222,044.45x = 27,289,401,785.11
  5. Step 5: Solve for x
    x = 27,289,401,785.11/222,044.45
  6. Step 6: Final answer
    x = 122,900.63

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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.