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Finding the Fourth Proportional to 119,540.85, 164,961.05 and 68,517.01

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Solution

The fourth proportional to 119,540.85, 164,961.05 and 68,517.01 is: 94,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,540.85 : 164,961.05 = 68,517.01 : x
  2. Step 2: Convert to fraction form
    119,540.85/164,961.05 = 68,517.01/x
  3. Step 3: Cross multiply
    119,540.85x = 164,961.05 × 68,517.01
  4. Step 4: Simplify right side
    119,540.85x = 11,302,637,912.46
  5. Step 5: Solve for x
    x = 11,302,637,912.46/119,540.85
  6. Step 6: Final answer
    x = 94,550.43

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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.