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Finding the Fourth Proportional to 117,221.44, 161,765.38 and 63,507.82

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Solution

The fourth proportional to 117,221.44, 161,765.38 and 63,507.82 is: 87,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,221.44 : 161,765.38 = 63,507.82 : x
  2. Step 2: Convert to fraction form
    117,221.44/161,765.38 = 63,507.82/x
  3. Step 3: Cross multiply
    117,221.44x = 161,765.38 × 63,507.82
  4. Step 4: Simplify right side
    117,221.44x = 10,273,366,635.27
  5. Step 5: Solve for x
    x = 10,273,366,635.27/117,221.44
  6. Step 6: Final answer
    x = 87,640.68

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