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Finding the Fourth Proportional to 221,238,704.40, 331,858,056.60 and 221,238,704.40

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Solution

The fourth proportional to 221,238,704.40, 331,858,056.60 and 221,238,704.40 is: 331,858,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,238,704.40 : 331,858,056.60 = 221,238,704.40 : x
  2. Step 2: Convert to fraction form
    221,238,704.40/331,858,056.60 = 221,238,704.40/x
  3. Step 3: Cross multiply
    221,238,704.40x = 331,858,056.60 × 221,238,704.40
  4. Step 4: Simplify right side
    221,238,704.40x = 73,419,846,486,885,872
  5. Step 5: Solve for x
    x = 73,419,846,486,885,872/221,238,704.40
  6. Step 6: Final answer
    x = 331,858,056.60

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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.