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Finding the Fourth Proportional to 222,440.80, 333,661.20 and 205,160.80

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Solution

The fourth proportional to 222,440.80, 333,661.20 and 205,160.80 is: 307,741.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,440.80 : 333,661.20 = 205,160.80 : x
  2. Step 2: Convert to fraction form
    222,440.80/333,661.20 = 205,160.80/x
  3. Step 3: Cross multiply
    222,440.80x = 333,661.20 × 205,160.80
  4. Step 4: Simplify right side
    222,440.80x = 68,454,198,720.96
  5. Step 5: Solve for x
    x = 68,454,198,720.96/222,440.80
  6. Step 6: Final answer
    x = 307,741.20

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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.