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Finding the Fourth Proportional to 167,493.78, 251,099.37 and 72,652.56

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Solution

The fourth proportional to 167,493.78, 251,099.37 and 72,652.56 is: 108,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,493.78 : 251,099.37 = 72,652.56 : x
  2. Step 2: Convert to fraction form
    167,493.78/251,099.37 = 72,652.56/x
  3. Step 3: Cross multiply
    167,493.78x = 251,099.37 × 72,652.56
  4. Step 4: Simplify right side
    167,493.78x = 18,243,011,681.62
  5. Step 5: Solve for x
    x = 18,243,011,681.62/167,493.78
  6. Step 6: Final answer
    x = 108,917.55

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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.