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Finding the Fourth Proportional to 308,432.48, 462,651.96 and 108,715.64

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Solution

The fourth proportional to 308,432.48, 462,651.96 and 108,715.64 is: 163,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,432.48 : 462,651.96 = 108,715.64 : x
  2. Step 2: Convert to fraction form
    308,432.48/462,651.96 = 108,715.64/x
  3. Step 3: Cross multiply
    308,432.48x = 462,651.96 × 108,715.64
  4. Step 4: Simplify right side
    308,432.48x = 50,297,503,928.65
  5. Step 5: Solve for x
    x = 50,297,503,928.65/308,432.48
  6. Step 6: Final answer
    x = 163,074.60

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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.