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Finding the Fourth Proportional to 222,296.38, 306,776.70 and 121,694.38

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Solution

The fourth proportional to 222,296.38, 306,776.70 and 121,694.38 is: 167,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,296.38 : 306,776.70 = 121,694.38 : x
  2. Step 2: Convert to fraction form
    222,296.38/306,776.70 = 121,694.38/x
  3. Step 3: Cross multiply
    222,296.38x = 306,776.70 × 121,694.38
  4. Step 4: Simplify right side
    222,296.38x = 37,332,998,162.59
  5. Step 5: Solve for x
    x = 37,332,998,162.59/222,296.38
  6. Step 6: Final answer
    x = 167,942.45

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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.