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Finding the Fourth Proportional to 173.34, 259.76 and 92.26

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Solution

The fourth proportional to 173.34, 259.76 and 92.26 is: 138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.34 : 259.76 = 92.26 : x
  2. Step 2: Convert to fraction form
    173.34/259.76 = 92.26/x
  3. Step 3: Cross multiply
    173.34x = 259.76 × 92.26
  4. Step 4: Simplify right side
    173.34x = 23,965.46
  5. Step 5: Solve for x
    x = 23,965.46/173.34
  6. Step 6: Final answer
    x = 138.26

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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.