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Finding the Fourth Proportional to 115,902.89, 173,879.32 and 35,939.26

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Solution

The fourth proportional to 115,902.89, 173,879.32 and 35,939.26 is: 53,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,902.89 : 173,879.32 = 35,939.26 : x
  2. Step 2: Convert to fraction form
    115,902.89/173,879.32 = 35,939.26/x
  3. Step 3: Cross multiply
    115,902.89x = 173,879.32 × 35,939.26
  4. Step 4: Simplify right side
    115,902.89x = 6,249,093,306.92
  5. Step 5: Solve for x
    x = 6,249,093,306.92/115,902.89
  6. Step 6: Final answer
    x = 53,916.63

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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.