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Finding the Fourth Proportional to 110,908.55, 166,291.90 and 65,917.91

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Solution

The fourth proportional to 110,908.55, 166,291.90 and 65,917.91 is: 98,834.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,908.55 : 166,291.90 = 65,917.91 : x
  2. Step 2: Convert to fraction form
    110,908.55/166,291.90 = 65,917.91/x
  3. Step 3: Cross multiply
    110,908.55x = 166,291.90 × 65,917.91
  4. Step 4: Simplify right side
    110,908.55x = 10,961,614,231.66
  5. Step 5: Solve for x
    x = 10,961,614,231.66/110,908.55
  6. Step 6: Final answer
    x = 98,834.71

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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.