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Finding the Fourth Proportional to 69,619.76, 95,903.09 and 59,377.31

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Solution

The fourth proportional to 69,619.76, 95,903.09 and 59,377.31 is: 81,793.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,619.76 : 95,903.09 = 59,377.31 : x
  2. Step 2: Convert to fraction form
    69,619.76/95,903.09 = 59,377.31/x
  3. Step 3: Cross multiply
    69,619.76x = 95,903.09 × 59,377.31
  4. Step 4: Simplify right side
    69,619.76x = 5,694,467,447.76
  5. Step 5: Solve for x
    x = 5,694,467,447.76/69,619.76
  6. Step 6: Final answer
    x = 81,793.84

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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.