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Finding the Fourth Proportional to 222,481.40, 334,499.70 and 217,815.80

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Solution

The fourth proportional to 222,481.40, 334,499.70 and 217,815.80 is: 327,484.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,481.40 : 334,499.70 = 217,815.80 : x
  2. Step 2: Convert to fraction form
    222,481.40/334,499.70 = 217,815.80/x
  3. Step 3: Cross multiply
    222,481.40x = 334,499.70 × 217,815.80
  4. Step 4: Simplify right side
    222,481.40x = 72,859,319,755.26
  5. Step 5: Solve for x
    x = 72,859,319,755.26/222,481.40
  6. Step 6: Final answer
    x = 327,484.99

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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.