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Finding the Fourth Proportional to 308,286.80, 462,149.96 and 118,626.17

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Solution

The fourth proportional to 308,286.80, 462,149.96 and 118,626.17 is: 177,831.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,286.80 : 462,149.96 = 118,626.17 : x
  2. Step 2: Convert to fraction form
    308,286.80/462,149.96 = 118,626.17/x
  3. Step 3: Cross multiply
    308,286.80x = 462,149.96 × 118,626.17
  4. Step 4: Simplify right side
    308,286.80x = 54,823,079,720.45
  5. Step 5: Solve for x
    x = 54,823,079,720.45/308,286.80
  6. Step 6: Final answer
    x = 177,831.42

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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.