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Finding the Fourth Proportional to 147,239.88, 220,894.43 and 47,396.33

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Solution

The fourth proportional to 147,239.88, 220,894.43 and 47,396.33 is: 71,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,239.88 : 220,894.43 = 47,396.33 : x
  2. Step 2: Convert to fraction form
    147,239.88/220,894.43 = 47,396.33/x
  3. Step 3: Cross multiply
    147,239.88x = 220,894.43 × 47,396.33
  4. Step 4: Simplify right side
    147,239.88x = 10,469,585,540.91
  5. Step 5: Solve for x
    x = 10,469,585,540.91/147,239.88
  6. Step 6: Final answer
    x = 71,105.64

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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.