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Finding the Fourth Proportional to 168,418.86, 232,362.83 and 120,028.41

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Solution

The fourth proportional to 168,418.86, 232,362.83 and 120,028.41 is: 165,599.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,418.86 : 232,362.83 = 120,028.41 : x
  2. Step 2: Convert to fraction form
    168,418.86/232,362.83 = 120,028.41/x
  3. Step 3: Cross multiply
    168,418.86x = 232,362.83 × 120,028.41
  4. Step 4: Simplify right side
    168,418.86x = 27,890,141,028.00
  5. Step 5: Solve for x
    x = 27,890,141,028.00/168,418.86
  6. Step 6: Final answer
    x = 165,599.87

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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.