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Finding the Fourth Proportional to 317,247.60, 475,936.20 and 106,906.80

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Solution

The fourth proportional to 317,247.60, 475,936.20 and 106,906.80 is: 160,382.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,247.60 : 475,936.20 = 106,906.80 : x
  2. Step 2: Convert to fraction form
    317,247.60/475,936.20 = 106,906.80/x
  3. Step 3: Cross multiply
    317,247.60x = 475,936.20 × 106,906.80
  4. Step 4: Simplify right side
    317,247.60x = 50,880,816,146.16
  5. Step 5: Solve for x
    x = 50,880,816,146.16/317,247.60
  6. Step 6: Final answer
    x = 160,382.04

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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.