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Finding the Fourth Proportional to 171,954.73, 257,943.49 and 45,593.21

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Solution

The fourth proportional to 171,954.73, 257,943.49 and 45,593.21 is: 68,392.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,954.73 : 257,943.49 = 45,593.21 : x
  2. Step 2: Convert to fraction form
    171,954.73/257,943.49 = 45,593.21/x
  3. Step 3: Cross multiply
    171,954.73x = 257,943.49 × 45,593.21
  4. Step 4: Simplify right side
    171,954.73x = 11,760,472,238.58
  5. Step 5: Solve for x
    x = 11,760,472,238.58/171,954.73
  6. Step 6: Final answer
    x = 68,392.84

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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.