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Finding the Fourth Proportional to 69,984,116.80, 104,976,175.20 and 69,984,116.80

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Solution

The fourth proportional to 69,984,116.80, 104,976,175.20 and 69,984,116.80 is: 104,976,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,116.80 : 104,976,175.20 = 69,984,116.80 : x
  2. Step 2: Convert to fraction form
    69,984,116.80/104,976,175.20 = 69,984,116.80/x
  3. Step 3: Cross multiply
    69,984,116.80x = 104,976,175.20 × 69,984,116.80
  4. Step 4: Simplify right side
    69,984,116.80x = 7,346,664,906,414,063
  5. Step 5: Solve for x
    x = 7,346,664,906,414,063/69,984,116.80
  6. Step 6: Final answer
    x = 104,976,175.20

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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.