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Finding the Fourth Proportional to 116,212.93, 173,879.49 and 68,853.45

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Solution

The fourth proportional to 116,212.93, 173,879.49 and 68,853.45 is: 103,019.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,212.93 : 173,879.49 = 68,853.45 : x
  2. Step 2: Convert to fraction form
    116,212.93/173,879.49 = 68,853.45/x
  3. Step 3: Cross multiply
    116,212.93x = 173,879.49 × 68,853.45
  4. Step 4: Simplify right side
    116,212.93x = 11,972,202,770.74
  5. Step 5: Solve for x
    x = 11,972,202,770.74/116,212.93
  6. Step 6: Final answer
    x = 103,019.54

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Why These Related Problems?

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