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Finding the Fourth Proportional to 173,058.82, 238,819.78 and 100,468.44

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Solution

The fourth proportional to 173,058.82, 238,819.78 and 100,468.44 is: 138,645.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,058.82 : 238,819.78 = 100,468.44 : x
  2. Step 2: Convert to fraction form
    173,058.82/238,819.78 = 100,468.44/x
  3. Step 3: Cross multiply
    173,058.82x = 238,819.78 × 100,468.44
  4. Step 4: Simplify right side
    173,058.82x = 23,993,851,507.73
  5. Step 5: Solve for x
    x = 23,993,851,507.73/173,058.82
  6. Step 6: Final answer
    x = 138,645.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.