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Finding the Fourth Proportional to 167,990.55, 231,826.95 and 92,539.05

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Solution

The fourth proportional to 167,990.55, 231,826.95 and 92,539.05 is: 127,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,990.55 : 231,826.95 = 92,539.05 : x
  2. Step 2: Convert to fraction form
    167,990.55/231,826.95 = 92,539.05/x
  3. Step 3: Cross multiply
    167,990.55x = 231,826.95 × 92,539.05
  4. Step 4: Simplify right side
    167,990.55x = 21,453,045,717.40
  5. Step 5: Solve for x
    x = 21,453,045,717.40/167,990.55
  6. Step 6: Final answer
    x = 127,703.88

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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.