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Finding the Fourth Proportional to 68,473.46, 102,639.72 and 33,369.68

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Solution

The fourth proportional to 68,473.46, 102,639.72 and 33,369.68 is: 50,020.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,473.46 : 102,639.72 = 33,369.68 : x
  2. Step 2: Convert to fraction form
    68,473.46/102,639.72 = 33,369.68/x
  3. Step 3: Cross multiply
    68,473.46x = 102,639.72 × 33,369.68
  4. Step 4: Simplify right side
    68,473.46x = 3,425,054,611.69
  5. Step 5: Solve for x
    x = 3,425,054,611.69/68,473.46
  6. Step 6: Final answer
    x = 50,020.18

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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.