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Finding the Fourth Proportional to 222,364.56, 306,860.82 and 120,387.32

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Solution

The fourth proportional to 222,364.56, 306,860.82 and 120,387.32 is: 166,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,364.56 : 306,860.82 = 120,387.32 : x
  2. Step 2: Convert to fraction form
    222,364.56/306,860.82 = 120,387.32/x
  3. Step 3: Cross multiply
    222,364.56x = 306,860.82 × 120,387.32
  4. Step 4: Simplify right side
    222,364.56x = 36,942,151,732.80
  5. Step 5: Solve for x
    x = 36,942,151,732.80/222,364.56
  6. Step 6: Final answer
    x = 166,133.27

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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.