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Finding the Fourth Proportional to 173.72, 260.06 and 168.45

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Solution

The fourth proportional to 173.72, 260.06 and 168.45 is: 252.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.72 : 260.06 = 168.45 : x
  2. Step 2: Convert to fraction form
    173.72/260.06 = 168.45/x
  3. Step 3: Cross multiply
    173.72x = 260.06 × 168.45
  4. Step 4: Simplify right side
    173.72x = 43,806.26
  5. Step 5: Solve for x
    x = 43,806.26/173.72
  6. Step 6: Final answer
    x = 252.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.