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Finding the Third Proportional to 86,395.50 and 133,281

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Solution

The third proportional to 86,395.50 and 133,281 is: 205,610.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,395.50 : 133,281 = 133,281 : x
  2. Step 2: Convert to fraction form
    86,395.50/133,281 = 133,281/x
  3. Step 3: Cross multiply
    86,395.50x = 133,281 × 133,281
  4. Step 4: Simplify right side
    86,395.50x = 17,763,824,961
  5. Step 5: Solve for x
    x = 17,763,824,961/86,395.50
  6. Step 6: Final answer
    x = 205,610.53

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.