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Finding the Fourth Proportional to 111,738,896.40, 167,508,617.40 and 43,565,732.40

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Solution

The fourth proportional to 111,738,896.40, 167,508,617.40 and 43,565,732.40 is: 65,309,716.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,738,896.40 : 167,508,617.40 = 43,565,732.40 : x
  2. Step 2: Convert to fraction form
    111,738,896.40/167,508,617.40 = 43,565,732.40/x
  3. Step 3: Cross multiply
    111,738,896.40x = 167,508,617.40 × 43,565,732.40
  4. Step 4: Simplify right side
    111,738,896.40x = 7,297,635,600,342,384
  5. Step 5: Solve for x
    x = 7,297,635,600,342,384/111,738,896.40
  6. Step 6: Final answer
    x = 65,309,716.09

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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.