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Finding the Fourth Proportional to 167,887.81, 251,919.20 and 74,371.69

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Solution

The fourth proportional to 167,887.81, 251,919.20 and 74,371.69 is: 111,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,887.81 : 251,919.20 = 74,371.69 : x
  2. Step 2: Convert to fraction form
    167,887.81/251,919.20 = 74,371.69/x
  3. Step 3: Cross multiply
    167,887.81x = 251,919.20 × 74,371.69
  4. Step 4: Simplify right side
    167,887.81x = 18,735,655,645.79
  5. Step 5: Solve for x
    x = 18,735,655,645.79/167,887.81
  6. Step 6: Final answer
    x = 111,596.29

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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.