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Finding the Fourth Proportional to 173.38, 260.17 and 70.65

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Solution

The fourth proportional to 173.38, 260.17 and 70.65 is: 106.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.38 : 260.17 = 70.65 : x
  2. Step 2: Convert to fraction form
    173.38/260.17 = 70.65/x
  3. Step 3: Cross multiply
    173.38x = 260.17 × 70.65
  4. Step 4: Simplify right side
    173.38x = 18,381.01
  5. Step 5: Solve for x
    x = 18,381.01/173.38
  6. Step 6: Final answer
    x = 106.02

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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.