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Finding the Fourth Proportional to 101,791.96, 140,473.07 and 56,469.94

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Solution

The fourth proportional to 101,791.96, 140,473.07 and 56,469.94 is: 77,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,791.96 : 140,473.07 = 56,469.94 : x
  2. Step 2: Convert to fraction form
    101,791.96/140,473.07 = 56,469.94/x
  3. Step 3: Cross multiply
    101,791.96x = 140,473.07 × 56,469.94
  4. Step 4: Simplify right side
    101,791.96x = 7,932,505,876.82
  5. Step 5: Solve for x
    x = 7,932,505,876.82/101,791.96
  6. Step 6: Final answer
    x = 77,928.61

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1.5x scale

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.