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Finding the Fourth Proportional to 167,472.90, 231,110.01 and 92,019.78

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Solution

The fourth proportional to 167,472.90, 231,110.01 and 92,019.78 is: 126,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,472.90 : 231,110.01 = 92,019.78 : x
  2. Step 2: Convert to fraction form
    167,472.90/231,110.01 = 92,019.78/x
  3. Step 3: Cross multiply
    167,472.90x = 231,110.01 × 92,019.78
  4. Step 4: Simplify right side
    167,472.90x = 21,266,692,276.00
  5. Step 5: Solve for x
    x = 21,266,692,276.00/167,472.90
  6. Step 6: Final answer
    x = 126,985.87

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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.