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Finding the Fourth Proportional to 234.24, 351 and 162.12

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Solution

The fourth proportional to 234.24, 351 and 162.12 is: 242.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.24 : 351 = 162.12 : x
  2. Step 2: Convert to fraction form
    234.24/351 = 162.12/x
  3. Step 3: Cross multiply
    234.24x = 351 × 162.12
  4. Step 4: Simplify right side
    234.24x = 56,904.12
  5. Step 5: Solve for x
    x = 56,904.12/234.24
  6. Step 6: Final answer
    x = 242.93

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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.