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Finding the Fourth Proportional to 222,617.60, 333,958.80 and 72,821.60

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Solution

The fourth proportional to 222,617.60, 333,958.80 and 72,821.60 is: 109,243.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,617.60 : 333,958.80 = 72,821.60 : x
  2. Step 2: Convert to fraction form
    222,617.60/333,958.80 = 72,821.60/x
  3. Step 3: Cross multiply
    222,617.60x = 333,958.80 × 72,821.60
  4. Step 4: Simplify right side
    222,617.60x = 24,319,414,150.08
  5. Step 5: Solve for x
    x = 24,319,414,150.08/222,617.60
  6. Step 6: Final answer
    x = 109,243.00

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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.