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Finding the Fourth Proportional to 117,164.88, 161,687.95 and 63,449.73

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Solution

The fourth proportional to 117,164.88, 161,687.95 and 63,449.73 is: 87,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,164.88 : 161,687.95 = 63,449.73 : x
  2. Step 2: Convert to fraction form
    117,164.88/161,687.95 = 63,449.73/x
  3. Step 3: Cross multiply
    117,164.88x = 161,687.95 × 63,449.73
  4. Step 4: Simplify right side
    117,164.88x = 10,259,056,613.13
  5. Step 5: Solve for x
    x = 10,259,056,613.13/117,164.88
  6. Step 6: Final answer
    x = 87,560.85

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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.