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Finding the Fourth Proportional to 76,775.56, 115,163.22 and 29,995.66

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Solution

The fourth proportional to 76,775.56, 115,163.22 and 29,995.66 is: 44,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,775.56 : 115,163.22 = 29,995.66 : x
  2. Step 2: Convert to fraction form
    76,775.56/115,163.22 = 29,995.66/x
  3. Step 3: Cross multiply
    76,775.56x = 115,163.22 × 29,995.66
  4. Step 4: Simplify right side
    76,775.56x = 3,454,396,791.63
  5. Step 5: Solve for x
    x = 3,454,396,791.63/76,775.56
  6. Step 6: Final answer
    x = 44,993.44

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Double scale
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Similar ratio
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1.5x scale

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.