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Finding the Fourth Proportional to 167,789.68, 251,684.25 and 115,039.24

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Solution

The fourth proportional to 167,789.68, 251,684.25 and 115,039.24 is: 172,558.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,789.68 : 251,684.25 = 115,039.24 : x
  2. Step 2: Convert to fraction form
    167,789.68/251,684.25 = 115,039.24/x
  3. Step 3: Cross multiply
    167,789.68x = 251,684.25 × 115,039.24
  4. Step 4: Simplify right side
    167,789.68x = 28,953,564,839.97
  5. Step 5: Solve for x
    x = 28,953,564,839.97/167,789.68
  6. Step 6: Final answer
    x = 172,558.67

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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.