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Finding the Third Proportional to 79,056 and 123,120

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Solution

The third proportional to 79,056 and 123,120 is: 191,744.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,056 : 123,120 = 123,120 : x
  2. Step 2: Convert to fraction form
    79,056/123,120 = 123,120/x
  3. Step 3: Cross multiply
    79,056x = 123,120 × 123,120
  4. Step 4: Simplify right side
    79,056x = 15,158,534,400
  5. Step 5: Solve for x
    x = 15,158,534,400/79,056
  6. Step 6: Final answer
    x = 191,744.26

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.