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Finding the Fourth Proportional to 115,843.40, 173,728.08 and 36,939.14

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Solution

The fourth proportional to 115,843.40, 173,728.08 and 36,939.14 is: 55,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,843.40 : 173,728.08 = 36,939.14 : x
  2. Step 2: Convert to fraction form
    115,843.40/173,728.08 = 36,939.14/x
  3. Step 3: Cross multiply
    115,843.40x = 173,728.08 × 36,939.14
  4. Step 4: Simplify right side
    115,843.40x = 6,417,365,869.05
  5. Step 5: Solve for x
    x = 6,417,365,869.05/115,843.40
  6. Step 6: Final answer
    x = 55,396.91

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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.