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Finding the Fourth Proportional to 175, 262.36 and 97.96

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Solution

The fourth proportional to 175, 262.36 and 97.96 is: 146.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    175 : 262.36 = 97.96 : x
  2. Step 2: Convert to fraction form
    175/262.36 = 97.96/x
  3. Step 3: Cross multiply
    175x = 262.36 × 97.96
  4. Step 4: Simplify right side
    175x = 25,700.79
  5. Step 5: Solve for x
    x = 25,700.79/175
  6. Step 6: Final answer
    x = 146.86

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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.