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Finding the Third Proportional to 86,016 and 190,080

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Solution

The third proportional to 86,016 and 190,080 is: 420,042.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,016 : 190,080 = 190,080 : x
  2. Step 2: Convert to fraction form
    86,016/190,080 = 190,080/x
  3. Step 3: Cross multiply
    86,016x = 190,080 × 190,080
  4. Step 4: Simplify right side
    86,016x = 36,130,406,400
  5. Step 5: Solve for x
    x = 36,130,406,400/86,016
  6. Step 6: Final answer
    x = 420,042.86

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.