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Finding the Fourth Proportional to 110,791.99, 166,121.16 and 51,640.93

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Solution

The fourth proportional to 110,791.99, 166,121.16 and 51,640.93 is: 77,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,791.99 : 166,121.16 = 51,640.93 : x
  2. Step 2: Convert to fraction form
    110,791.99/166,121.16 = 51,640.93/x
  3. Step 3: Cross multiply
    110,791.99x = 166,121.16 × 51,640.93
  4. Step 4: Simplify right side
    110,791.99x = 8,578,651,195.08
  5. Step 5: Solve for x
    x = 8,578,651,195.08/110,791.99
  6. Step 6: Final answer
    x = 77,430.25

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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.