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Finding the Third Proportional to 86,270 and 132,136

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Solution

The third proportional to 86,270 and 132,136 is: 202,386.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,270 : 132,136 = 132,136 : x
  2. Step 2: Convert to fraction form
    86,270/132,136 = 132,136/x
  3. Step 3: Cross multiply
    86,270x = 132,136 × 132,136
  4. Step 4: Simplify right side
    86,270x = 17,459,922,496
  5. Step 5: Solve for x
    x = 17,459,922,496/86,270
  6. Step 6: Final answer
    x = 202,386.95

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.