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Finding the Fourth Proportional to 231.75, 346.58 and 176.93

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Solution

The fourth proportional to 231.75, 346.58 and 176.93 is: 264.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.75 : 346.58 = 176.93 : x
  2. Step 2: Convert to fraction form
    231.75/346.58 = 176.93/x
  3. Step 3: Cross multiply
    231.75x = 346.58 × 176.93
  4. Step 4: Simplify right side
    231.75x = 61,318.67
  5. Step 5: Solve for x
    x = 61,318.67/231.75
  6. Step 6: Final answer
    x = 264.59

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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.