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Finding the Fourth Proportional to 222,066.80, 333,027.30 and 81,807.20

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Solution

The fourth proportional to 222,066.80, 333,027.30 and 81,807.20 is: 122,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,066.80 : 333,027.30 = 81,807.20 : x
  2. Step 2: Convert to fraction form
    222,066.80/333,027.30 = 81,807.20/x
  3. Step 3: Cross multiply
    222,066.80x = 333,027.30 × 81,807.20
  4. Step 4: Simplify right side
    222,066.80x = 27,244,030,936.56
  5. Step 5: Solve for x
    x = 27,244,030,936.56/222,066.80
  6. Step 6: Final answer
    x = 122,683.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.