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Finding the Fourth Proportional to 143,248.24, 214,872.42 and 54,481.24

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Solution

The fourth proportional to 143,248.24, 214,872.42 and 54,481.24 is: 81,721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,248.24 : 214,872.42 = 54,481.24 : x
  2. Step 2: Convert to fraction form
    143,248.24/214,872.42 = 54,481.24/x
  3. Step 3: Cross multiply
    143,248.24x = 214,872.42 × 54,481.24
  4. Step 4: Simplify right side
    143,248.24x = 11,706,515,883.40
  5. Step 5: Solve for x
    x = 11,706,515,883.40/143,248.24
  6. Step 6: Final answer
    x = 81,721.88

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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.