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Finding the Fourth Proportional to 222,867.56, 307,554.62 and 120,891.12

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Solution

The fourth proportional to 222,867.56, 307,554.62 and 120,891.12 is: 166,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,867.56 : 307,554.62 = 120,891.12 : x
  2. Step 2: Convert to fraction form
    222,867.56/307,554.62 = 120,891.12/x
  3. Step 3: Cross multiply
    222,867.56x = 307,554.62 × 120,891.12
  4. Step 4: Simplify right side
    222,867.56x = 37,180,622,472.97
  5. Step 5: Solve for x
    x = 37,180,622,472.97/222,867.56
  6. Step 6: Final answer
    x = 166,828.33

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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.