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Finding the Fourth Proportional to 468,998,708.42, 703,504,049.54 and 123,949,354.26

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Solution

The fourth proportional to 468,998,708.42, 703,504,049.54 and 123,949,354.26 is: 185,925,613.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,998,708.42 : 703,504,049.54 = 123,949,354.26 : x
  2. Step 2: Convert to fraction form
    468,998,708.42/703,504,049.54 = 123,949,354.26/x
  3. Step 3: Cross multiply
    468,998,708.42x = 703,504,049.54 × 123,949,354.26
  4. Step 4: Simplify right side
    468,998,708.42x = 87,198,872,659,778,048
  5. Step 5: Solve for x
    x = 87,198,872,659,778,048/468,998,708.42
  6. Step 6: Final answer
    x = 185,925,613.64

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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.