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Finding the Fourth Proportional to 234,442, 351,721.32 and 68,230

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Solution

The fourth proportional to 234,442, 351,721.32 and 68,230 is: 102,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,442 : 351,721.32 = 68,230 : x
  2. Step 2: Convert to fraction form
    234,442/351,721.32 = 68,230/x
  3. Step 3: Cross multiply
    234,442x = 351,721.32 × 68,230
  4. Step 4: Simplify right side
    234,442x = 23,997,945,663.60
  5. Step 5: Solve for x
    x = 23,997,945,663.60/234,442
  6. Step 6: Final answer
    x = 102,361.97

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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.