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Finding the Fourth Proportional to 228,941.20, 342,755.70 and 222,380.20

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Solution

The fourth proportional to 228,941.20, 342,755.70 and 222,380.20 is: 332,933.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,941.20 : 342,755.70 = 222,380.20 : x
  2. Step 2: Convert to fraction form
    228,941.20/342,755.70 = 222,380.20/x
  3. Step 3: Cross multiply
    228,941.20x = 342,755.70 × 222,380.20
  4. Step 4: Simplify right side
    228,941.20x = 76,222,081,117.14
  5. Step 5: Solve for x
    x = 76,222,081,117.14/228,941.20
  6. Step 6: Final answer
    x = 332,933.00

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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.