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Finding the Fourth Proportional to 65,761.80, 98,569.80 and 36,200.85

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Solution

The fourth proportional to 65,761.80, 98,569.80 and 36,200.85 is: 54,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,761.80 : 98,569.80 = 36,200.85 : x
  2. Step 2: Convert to fraction form
    65,761.80/98,569.80 = 36,200.85/x
  3. Step 3: Cross multiply
    65,761.80x = 98,569.80 × 36,200.85
  4. Step 4: Simplify right side
    65,761.80x = 3,568,310,544.33
  5. Step 5: Solve for x
    x = 3,568,310,544.33/65,761.80
  6. Step 6: Final answer
    x = 54,261.14

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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.