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Finding the Fourth Proportional to 167,551.92, 251,346.20 and 72,716.91

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Solution

The fourth proportional to 167,551.92, 251,346.20 and 72,716.91 is: 109,083.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,551.92 : 251,346.20 = 72,716.91 : x
  2. Step 2: Convert to fraction form
    167,551.92/251,346.20 = 72,716.91/x
  3. Step 3: Cross multiply
    167,551.92x = 251,346.20 × 72,716.91
  4. Step 4: Simplify right side
    167,551.92x = 18,277,118,640.66
  5. Step 5: Solve for x
    x = 18,277,118,640.66/167,551.92
  6. Step 6: Final answer
    x = 109,083.31

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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.