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Finding the Fourth Proportional to 167,885.53, 231,793.66 and 129,054.54

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Solution

The fourth proportional to 167,885.53, 231,793.66 and 129,054.54 is: 178,181.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,885.53 : 231,793.66 = 129,054.54 : x
  2. Step 2: Convert to fraction form
    167,885.53/231,793.66 = 129,054.54/x
  3. Step 3: Cross multiply
    167,885.53x = 231,793.66 × 129,054.54
  4. Step 4: Simplify right side
    167,885.53x = 29,914,024,166.22
  5. Step 5: Solve for x
    x = 29,914,024,166.22/167,885.53
  6. Step 6: Final answer
    x = 178,181.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.