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Finding the Fourth Proportional to 222,540.39, 333,852.42 and 89,431.20

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Solution

The fourth proportional to 222,540.39, 333,852.42 and 89,431.20 is: 134,163.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,540.39 : 333,852.42 = 89,431.20 : x
  2. Step 2: Convert to fraction form
    222,540.39/333,852.42 = 89,431.20/x
  3. Step 3: Cross multiply
    222,540.39x = 333,852.42 × 89,431.20
  4. Step 4: Simplify right side
    222,540.39x = 29,856,822,543.50
  5. Step 5: Solve for x
    x = 29,856,822,543.50/222,540.39
  6. Step 6: Final answer
    x = 134,163.61

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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.