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Finding the Fourth Proportional to 308,573.92, 462,770.12 and 131,079.52

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Solution

The fourth proportional to 308,573.92, 462,770.12 and 131,079.52 is: 196,580.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,573.92 : 462,770.12 = 131,079.52 : x
  2. Step 2: Convert to fraction form
    308,573.92/462,770.12 = 131,079.52/x
  3. Step 3: Cross multiply
    308,573.92x = 462,770.12 × 131,079.52
  4. Step 4: Simplify right side
    308,573.92x = 60,659,685,199.94
  5. Step 5: Solve for x
    x = 60,659,685,199.94/308,573.92
  6. Step 6: Final answer
    x = 196,580.73

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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.