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Finding the Fourth Proportional to 110,706.21, 166,061.88 and 39,633.71

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Solution

The fourth proportional to 110,706.21, 166,061.88 and 39,633.71 is: 59,451.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,706.21 : 166,061.88 = 39,633.71 : x
  2. Step 2: Convert to fraction form
    110,706.21/166,061.88 = 39,633.71/x
  3. Step 3: Cross multiply
    110,706.21x = 166,061.88 × 39,633.71
  4. Step 4: Simplify right side
    110,706.21x = 6,581,647,563.67
  5. Step 5: Solve for x
    x = 6,581,647,563.67/110,706.21
  6. Step 6: Final answer
    x = 59,451.48

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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.