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Finding the Fourth Proportional to 222,362.56, 306,858.06 and 120,385.32

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Solution

The fourth proportional to 222,362.56, 306,858.06 and 120,385.32 is: 166,130.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,362.56 : 306,858.06 = 120,385.32 : x
  2. Step 2: Convert to fraction form
    222,362.56/306,858.06 = 120,385.32/x
  3. Step 3: Cross multiply
    222,362.56x = 306,858.06 × 120,385.32
  4. Step 4: Simplify right side
    222,362.56x = 36,941,205,747.68
  5. Step 5: Solve for x
    x = 36,941,205,747.68/222,362.56
  6. Step 6: Final answer
    x = 166,130.51

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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.