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Finding the Fourth Proportional to 167,491.96, 251,096.66 and 72,650.71

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Solution

The fourth proportional to 167,491.96, 251,096.66 and 72,650.71 is: 108,914.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,491.96 : 251,096.66 = 72,650.71 : x
  2. Step 2: Convert to fraction form
    167,491.96/251,096.66 = 72,650.71/x
  3. Step 3: Cross multiply
    167,491.96x = 251,096.66 × 72,650.71
  4. Step 4: Simplify right side
    167,491.96x = 18,242,350,627.63
  5. Step 5: Solve for x
    x = 18,242,350,627.63/167,491.96
  6. Step 6: Final answer
    x = 108,914.78

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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.