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Finding the Fourth Proportional to 81,166.50, 121,642.83 and 34,361.46

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Solution

The fourth proportional to 81,166.50, 121,642.83 and 34,361.46 is: 51,496.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,166.50 : 121,642.83 = 34,361.46 : x
  2. Step 2: Convert to fraction form
    81,166.50/121,642.83 = 34,361.46/x
  3. Step 3: Cross multiply
    81,166.50x = 121,642.83 × 34,361.46
  4. Step 4: Simplify right side
    81,166.50x = 4,179,825,237.33
  5. Step 5: Solve for x
    x = 4,179,825,237.33/81,166.50
  6. Step 6: Final answer
    x = 51,496.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.