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Finding the Fourth Proportional to 67,799.76, 101,761.74 and 34,543.68

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Solution

The fourth proportional to 67,799.76, 101,761.74 and 34,543.68 is: 51,847.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,799.76 : 101,761.74 = 34,543.68 : x
  2. Step 2: Convert to fraction form
    67,799.76/101,761.74 = 34,543.68/x
  3. Step 3: Cross multiply
    67,799.76x = 101,761.74 × 34,543.68
  4. Step 4: Simplify right side
    67,799.76x = 3,515,224,982.80
  5. Step 5: Solve for x
    x = 3,515,224,982.80/67,799.76
  6. Step 6: Final answer
    x = 51,847.16

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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.