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Finding the Fourth Proportional to 308,563.53, 462,754.57 and 131,069.13

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Solution

The fourth proportional to 308,563.53, 462,754.57 and 131,069.13 is: 196,565.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,563.53 : 462,754.57 = 131,069.13 : x
  2. Step 2: Convert to fraction form
    308,563.53/462,754.57 = 131,069.13/x
  3. Step 3: Cross multiply
    308,563.53x = 462,754.57 × 131,069.13
  4. Step 4: Simplify right side
    308,563.53x = 60,652,836,251.98
  5. Step 5: Solve for x
    x = 60,652,836,251.98/308,563.53
  6. Step 6: Final answer
    x = 196,565.15

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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.