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Finding the Fourth Proportional to 308,432.46, 462,651.96 and 108,715.62

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Solution

The fourth proportional to 308,432.46, 462,651.96 and 108,715.62 is: 163,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,432.46 : 462,651.96 = 108,715.62 : x
  2. Step 2: Convert to fraction form
    308,432.46/462,651.96 = 108,715.62/x
  3. Step 3: Cross multiply
    308,432.46x = 462,651.96 × 108,715.62
  4. Step 4: Simplify right side
    308,432.46x = 50,297,494,675.62
  5. Step 5: Solve for x
    x = 50,297,494,675.62/308,432.46
  6. Step 6: Final answer
    x = 163,074.58

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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.