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Finding the Fourth Proportional to 117,469.46, 162,109.41 and 63,755.12

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Solution

The fourth proportional to 117,469.46, 162,109.41 and 63,755.12 is: 87,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,469.46 : 162,109.41 = 63,755.12 : x
  2. Step 2: Convert to fraction form
    117,469.46/162,109.41 = 63,755.12/x
  3. Step 3: Cross multiply
    117,469.46x = 162,109.41 × 63,755.12
  4. Step 4: Simplify right side
    117,469.46x = 10,335,304,887.68
  5. Step 5: Solve for x
    x = 10,335,304,887.68/117,469.46
  6. Step 6: Final answer
    x = 87,982.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.