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Finding the Third Proportional to 163,760 and 355,168

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Solution

The third proportional to 163,760 and 355,168 is: 770,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,760 : 355,168 = 355,168 : x
  2. Step 2: Convert to fraction form
    163,760/355,168 = 355,168/x
  3. Step 3: Cross multiply
    163,760x = 355,168 × 355,168
  4. Step 4: Simplify right side
    163,760x = 126,144,308,224
  5. Step 5: Solve for x
    x = 126,144,308,224/163,760
  6. Step 6: Final answer
    x = 770,299.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.