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Finding the Third Proportional to 156,724 and 344,548

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Solution

The third proportional to 156,724 and 344,548 is: 757,467.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,724 : 344,548 = 344,548 : x
  2. Step 2: Convert to fraction form
    156,724/344,548 = 344,548/x
  3. Step 3: Cross multiply
    156,724x = 344,548 × 344,548
  4. Step 4: Simplify right side
    156,724x = 118,713,324,304
  5. Step 5: Solve for x
    x = 118,713,324,304/156,724
  6. Step 6: Final answer
    x = 757,467.42

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.