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Finding the Fourth Proportional to 222,647.75, 333,454.94 and 220,988.37

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Solution

The fourth proportional to 222,647.75, 333,454.94 and 220,988.37 is: 330,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,647.75 : 333,454.94 = 220,988.37 : x
  2. Step 2: Convert to fraction form
    222,647.75/333,454.94 = 220,988.37/x
  3. Step 3: Cross multiply
    222,647.75x = 333,454.94 × 220,988.37
  4. Step 4: Simplify right side
    222,647.75x = 73,689,663,659.05
  5. Step 5: Solve for x
    x = 73,689,663,659.05/222,647.75
  6. Step 6: Final answer
    x = 330,969.72

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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.