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Finding the Fourth Proportional to 91,704.36, 126,505.44 and 59,891.88

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Solution

The fourth proportional to 91,704.36, 126,505.44 and 59,891.88 is: 82,620.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,704.36 : 126,505.44 = 59,891.88 : x
  2. Step 2: Convert to fraction form
    91,704.36/126,505.44 = 59,891.88/x
  3. Step 3: Cross multiply
    91,704.36x = 126,505.44 × 59,891.88
  4. Step 4: Simplify right side
    91,704.36x = 7,576,648,631.83
  5. Step 5: Solve for x
    x = 7,576,648,631.83/91,704.36
  6. Step 6: Final answer
    x = 82,620.38

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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.