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Finding the Fourth Proportional to 222,227.45, 306,674.68 and 120,252.90

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Solution

The fourth proportional to 222,227.45, 306,674.68 and 120,252.90 is: 165,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,227.45 : 306,674.68 = 120,252.90 : x
  2. Step 2: Convert to fraction form
    222,227.45/306,674.68 = 120,252.90/x
  3. Step 3: Cross multiply
    222,227.45x = 306,674.68 × 120,252.90
  4. Step 4: Simplify right side
    222,227.45x = 36,878,519,626.57
  5. Step 5: Solve for x
    x = 36,878,519,626.57/222,227.45
  6. Step 6: Final answer
    x = 165,949.44

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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.