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Finding the Fourth Proportional to 167,372.90, 230,974.83 and 90,892.02

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Solution

The fourth proportional to 167,372.90, 230,974.83 and 90,892.02 is: 125,431.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,372.90 : 230,974.83 = 90,892.02 : x
  2. Step 2: Convert to fraction form
    167,372.90/230,974.83 = 90,892.02/x
  3. Step 3: Cross multiply
    167,372.90x = 230,974.83 × 90,892.02
  4. Step 4: Simplify right side
    167,372.90x = 20,993,768,867.86
  5. Step 5: Solve for x
    x = 20,993,768,867.86/167,372.90
  6. Step 6: Final answer
    x = 125,431.12

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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.