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Finding the Fourth Proportional to 220,949,662.40, 331,449,376.80 and 67,594,500.80

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Solution

The fourth proportional to 220,949,662.40, 331,449,376.80 and 67,594,500.80 is: 101,399,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,949,662.40 : 331,449,376.80 = 67,594,500.80 : x
  2. Step 2: Convert to fraction form
    220,949,662.40/331,449,376.80 = 67,594,500.80/x
  3. Step 3: Cross multiply
    220,949,662.40x = 331,449,376.80 × 67,594,500.80
  4. Step 4: Simplify right side
    220,949,662.40x = 22,404,155,165,267,100
  5. Step 5: Solve for x
    x = 22,404,155,165,267,100/220,949,662.40
  6. Step 6: Final answer
    x = 101,399,363.65

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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.