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Finding the Fourth Proportional to 129,950.73, 194,891.67 and 51,065.64

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Solution

The fourth proportional to 129,950.73, 194,891.67 and 51,065.64 is: 76,584.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,950.73 : 194,891.67 = 51,065.64 : x
  2. Step 2: Convert to fraction form
    129,950.73/194,891.67 = 51,065.64/x
  3. Step 3: Cross multiply
    129,950.73x = 194,891.67 × 51,065.64
  4. Step 4: Simplify right side
    129,950.73x = 9,952,267,859.22
  5. Step 5: Solve for x
    x = 9,952,267,859.22/129,950.73
  6. Step 6: Final answer
    x = 76,584.93

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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.