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Finding the Fourth Proportional to 258,371.82, 356,623.25 and 167,722.49

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Solution

The fourth proportional to 258,371.82, 356,623.25 and 167,722.49 is: 231,502.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,371.82 : 356,623.25 = 167,722.49 : x
  2. Step 2: Convert to fraction form
    258,371.82/356,623.25 = 167,722.49/x
  3. Step 3: Cross multiply
    258,371.82x = 356,623.25 × 167,722.49
  4. Step 4: Simplify right side
    258,371.82x = 59,813,736,860.16
  5. Step 5: Solve for x
    x = 59,813,736,860.16/258,371.82
  6. Step 6: Final answer
    x = 231,502.56

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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.