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Finding the Fourth Proportional to 111,885.51, 167,788.29 and 36,991.83

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Solution

The fourth proportional to 111,885.51, 167,788.29 and 36,991.83 is: 55,474.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,885.51 : 167,788.29 = 36,991.83 : x
  2. Step 2: Convert to fraction form
    111,885.51/167,788.29 = 36,991.83/x
  3. Step 3: Cross multiply
    111,885.51x = 167,788.29 × 36,991.83
  4. Step 4: Simplify right side
    111,885.51x = 6,206,795,899.67
  5. Step 5: Solve for x
    x = 6,206,795,899.67/111,885.51
  6. Step 6: Final answer
    x = 55,474.53

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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.