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Finding the Third Proportional to 79,784 and 167,832

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Solution

The third proportional to 79,784 and 167,832 is: 353,047.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,784 : 167,832 = 167,832 : x
  2. Step 2: Convert to fraction form
    79,784/167,832 = 167,832/x
  3. Step 3: Cross multiply
    79,784x = 167,832 × 167,832
  4. Step 4: Simplify right side
    79,784x = 28,167,580,224
  5. Step 5: Solve for x
    x = 28,167,580,224/79,784
  6. Step 6: Final answer
    x = 353,047.98

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.