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Finding the Fourth Proportional to 308,708.20, 463,062.30 and 109,253.80

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Solution

The fourth proportional to 308,708.20, 463,062.30 and 109,253.80 is: 163,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,708.20 : 463,062.30 = 109,253.80 : x
  2. Step 2: Convert to fraction form
    308,708.20/463,062.30 = 109,253.80/x
  3. Step 3: Cross multiply
    308,708.20x = 463,062.30 × 109,253.80
  4. Step 4: Simplify right side
    308,708.20x = 50,591,315,911.74
  5. Step 5: Solve for x
    x = 50,591,315,911.74/308,708.20
  6. Step 6: Final answer
    x = 163,880.70

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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.