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Finding the Fourth Proportional to 222,456.76, 306,990.22 and 120,482.22

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Solution

The fourth proportional to 222,456.76, 306,990.22 and 120,482.22 is: 166,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,456.76 : 306,990.22 = 120,482.22 : x
  2. Step 2: Convert to fraction form
    222,456.76/306,990.22 = 120,482.22/x
  3. Step 3: Cross multiply
    222,456.76x = 306,990.22 × 120,482.22
  4. Step 4: Simplify right side
    222,456.76x = 36,986,861,086.53
  5. Step 5: Solve for x
    x = 36,986,861,086.53/222,456.76
  6. Step 6: Final answer
    x = 166,265.40

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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.