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Finding the Fourth Proportional to 69,481.66, 95,862.55 and 42,611.26

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Solution

The fourth proportional to 69,481.66, 95,862.55 and 42,611.26 is: 58,789.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,481.66 : 95,862.55 = 42,611.26 : x
  2. Step 2: Convert to fraction form
    69,481.66/95,862.55 = 42,611.26/x
  3. Step 3: Cross multiply
    69,481.66x = 95,862.55 × 42,611.26
  4. Step 4: Simplify right side
    69,481.66x = 4,084,824,042.31
  5. Step 5: Solve for x
    x = 4,084,824,042.31/69,481.66
  6. Step 6: Final answer
    x = 58,789.96

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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.