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Finding the Fourth Proportional to 128,816,469.45, 193,224,704.18 and 128,816,469.45

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Solution

The fourth proportional to 128,816,469.45, 193,224,704.18 and 128,816,469.45 is: 193,224,704.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,816,469.45 : 193,224,704.18 = 128,816,469.45 : x
  2. Step 2: Convert to fraction form
    128,816,469.45/193,224,704.18 = 128,816,469.45/x
  3. Step 3: Cross multiply
    128,816,469.45x = 193,224,704.18 × 128,816,469.45
  4. Step 4: Simplify right side
    128,816,469.45x = 24,890,524,202,344,176
  5. Step 5: Solve for x
    x = 24,890,524,202,344,176/128,816,469.45
  6. Step 6: Final answer
    x = 193,224,704.18

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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.