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Finding the Third Proportional to 164,684 and 354,772

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Solution

The third proportional to 164,684 and 354,772 is: 764,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,684 : 354,772 = 354,772 : x
  2. Step 2: Convert to fraction form
    164,684/354,772 = 354,772/x
  3. Step 3: Cross multiply
    164,684x = 354,772 × 354,772
  4. Step 4: Simplify right side
    164,684x = 125,863,171,984
  5. Step 5: Solve for x
    x = 125,863,171,984/164,684
  6. Step 6: Final answer
    x = 764,270.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.