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Finding the Fourth Proportional to 115,855.68, 173,786.56 and 36,969.84

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Solution

The fourth proportional to 115,855.68, 173,786.56 and 36,969.84 is: 55,455.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,855.68 : 173,786.56 = 36,969.84 : x
  2. Step 2: Convert to fraction form
    115,855.68/173,786.56 = 36,969.84/x
  3. Step 3: Cross multiply
    115,855.68x = 173,786.56 × 36,969.84
  4. Step 4: Simplify right side
    115,855.68x = 6,424,861,317.35
  5. Step 5: Solve for x
    x = 6,424,861,317.35/115,855.68
  6. Step 6: Final answer
    x = 55,455.73

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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.