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Finding the Fourth Proportional to 115,761.64, 173,616.08 and 55,759.46

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Solution

The fourth proportional to 115,761.64, 173,616.08 and 55,759.46 is: 83,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,761.64 : 173,616.08 = 55,759.46 : x
  2. Step 2: Convert to fraction form
    115,761.64/173,616.08 = 55,759.46/x
  3. Step 3: Cross multiply
    115,761.64x = 173,616.08 × 55,759.46
  4. Step 4: Simplify right side
    115,761.64x = 9,680,738,868.12
  5. Step 5: Solve for x
    x = 9,680,738,868.12/115,761.64
  6. Step 6: Final answer
    x = 83,626.48

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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.