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Finding the Fourth Proportional to 81,761.67, 122,585.94 and 41,702.94

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Solution

The fourth proportional to 81,761.67, 122,585.94 and 41,702.94 is: 62,525.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,761.67 : 122,585.94 = 41,702.94 : x
  2. Step 2: Convert to fraction form
    81,761.67/122,585.94 = 41,702.94/x
  3. Step 3: Cross multiply
    81,761.67x = 122,585.94 × 41,702.94
  4. Step 4: Simplify right side
    81,761.67x = 5,112,194,100.66
  5. Step 5: Solve for x
    x = 5,112,194,100.66/81,761.67
  6. Step 6: Final answer
    x = 62,525.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.