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Finding the Fourth Proportional to 222,367.95, 306,867.89 and 120,393.44

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Solution

The fourth proportional to 222,367.95, 306,867.89 and 120,393.44 is: 166,143.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,367.95 : 306,867.89 = 120,393.44 : x
  2. Step 2: Convert to fraction form
    222,367.95/306,867.89 = 120,393.44/x
  3. Step 3: Cross multiply
    222,367.95x = 306,867.89 × 120,393.44
  4. Step 4: Simplify right side
    222,367.95x = 36,944,880,820.04
  5. Step 5: Solve for x
    x = 36,944,880,820.04/222,367.95
  6. Step 6: Final answer
    x = 166,143.01

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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.