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Finding the Fourth Proportional to 222,667, 307,299.90 and 122,084.44

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Solution

The fourth proportional to 222,667, 307,299.90 and 122,084.44 is: 168,487.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,667 : 307,299.90 = 122,084.44 : x
  2. Step 2: Convert to fraction form
    222,667/307,299.90 = 122,084.44/x
  3. Step 3: Cross multiply
    222,667x = 307,299.90 × 122,084.44
  4. Step 4: Simplify right side
    222,667x = 37,516,536,203.56
  5. Step 5: Solve for x
    x = 37,516,536,203.56/222,667
  6. Step 6: Final answer
    x = 168,487.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.