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Finding the Fourth Proportional to 117,164.67, 161,687.37 and 63,449.76

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Solution

The fourth proportional to 117,164.67, 161,687.37 and 63,449.76 is: 87,560.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,164.67 : 161,687.37 = 63,449.76 : x
  2. Step 2: Convert to fraction form
    117,164.67/161,687.37 = 63,449.76/x
  3. Step 3: Cross multiply
    117,164.67x = 161,687.37 × 63,449.76
  4. Step 4: Simplify right side
    117,164.67x = 10,259,024,821.53
  5. Step 5: Solve for x
    x = 10,259,024,821.53/117,164.67
  6. Step 6: Final answer
    x = 87,560.74

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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.