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Finding the Fourth Proportional to 221,015.01, 331,620.53 and 115,808.97

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Solution

The fourth proportional to 221,015.01, 331,620.53 and 115,808.97 is: 173,764.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,015.01 : 331,620.53 = 115,808.97 : x
  2. Step 2: Convert to fraction form
    221,015.01/331,620.53 = 115,808.97/x
  3. Step 3: Cross multiply
    221,015.01x = 331,620.53 × 115,808.97
  4. Step 4: Simplify right side
    221,015.01x = 38,404,631,431.11
  5. Step 5: Solve for x
    x = 38,404,631,431.11/221,015.01
  6. Step 6: Final answer
    x = 173,764.81

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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.