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Finding the Fourth Proportional to 137,630.54, 206,396.22 and 47,648.82

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Solution

The fourth proportional to 137,630.54, 206,396.22 and 47,648.82 is: 71,456.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,630.54 : 206,396.22 = 47,648.82 : x
  2. Step 2: Convert to fraction form
    137,630.54/206,396.22 = 47,648.82/x
  3. Step 3: Cross multiply
    137,630.54x = 206,396.22 × 47,648.82
  4. Step 4: Simplify right side
    137,630.54x = 9,834,536,335.46
  5. Step 5: Solve for x
    x = 9,834,536,335.46/137,630.54
  6. Step 6: Final answer
    x = 71,456.06

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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.