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Finding the Fourth Proportional to 167,495.18, 231,049.79 and 102,919.56

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Solution

The fourth proportional to 167,495.18, 231,049.79 and 102,919.56 is: 141,971.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,495.18 : 231,049.79 = 102,919.56 : x
  2. Step 2: Convert to fraction form
    167,495.18/231,049.79 = 102,919.56/x
  3. Step 3: Cross multiply
    167,495.18x = 231,049.79 × 102,919.56
  4. Step 4: Simplify right side
    167,495.18x = 23,779,543,318.92
  5. Step 5: Solve for x
    x = 23,779,543,318.92/167,495.18
  6. Step 6: Final answer
    x = 141,971.51

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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.