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Finding the Fourth Proportional to 222,684.40, 333,793.32 and 143,965.36

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Solution

The fourth proportional to 222,684.40, 333,793.32 and 143,965.36 is: 215,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,684.40 : 333,793.32 = 143,965.36 : x
  2. Step 2: Convert to fraction form
    222,684.40/333,793.32 = 143,965.36/x
  3. Step 3: Cross multiply
    222,684.40x = 333,793.32 × 143,965.36
  4. Step 4: Simplify right side
    222,684.40x = 48,054,675,479.40
  5. Step 5: Solve for x
    x = 48,054,675,479.40/222,684.40
  6. Step 6: Final answer
    x = 215,797.22

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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.