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Finding the Fourth Proportional to 222,315.25, 306,795.22 and 120,340.40

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Solution

The fourth proportional to 222,315.25, 306,795.22 and 120,340.40 is: 166,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,315.25 : 306,795.22 = 120,340.40 : x
  2. Step 2: Convert to fraction form
    222,315.25/306,795.22 = 120,340.40/x
  3. Step 3: Cross multiply
    222,315.25x = 306,795.22 × 120,340.40
  4. Step 4: Simplify right side
    222,315.25x = 36,919,858,334.98
  5. Step 5: Solve for x
    x = 36,919,858,334.98/222,315.25
  6. Step 6: Final answer
    x = 166,069.84

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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.