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Finding the Third Proportional to 86,020 and 130,327

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Solution

The third proportional to 86,020 and 130,327 is: 197,455.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,020 : 130,327 = 130,327 : x
  2. Step 2: Convert to fraction form
    86,020/130,327 = 130,327/x
  3. Step 3: Cross multiply
    86,020x = 130,327 × 130,327
  4. Step 4: Simplify right side
    86,020x = 16,985,126,929
  5. Step 5: Solve for x
    x = 16,985,126,929/86,020
  6. Step 6: Final answer
    x = 197,455.56

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.