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Finding the Fourth Proportional to 167,447.41, 231,076.51 and 90,965.90

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Solution

The fourth proportional to 167,447.41, 231,076.51 and 90,965.90 is: 125,532.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,447.41 : 231,076.51 = 90,965.90 : x
  2. Step 2: Convert to fraction form
    167,447.41/231,076.51 = 90,965.90/x
  3. Step 3: Cross multiply
    167,447.41x = 231,076.51 × 90,965.90
  4. Step 4: Simplify right side
    167,447.41x = 21,020,082,701.01
  5. Step 5: Solve for x
    x = 21,020,082,701.01/167,447.41
  6. Step 6: Final answer
    x = 125,532.44

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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.