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Finding the Third Proportional to 84,836 and 134,312

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Solution

The third proportional to 84,836 and 134,312 is: 212,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,836 : 134,312 = 134,312 : x
  2. Step 2: Convert to fraction form
    84,836/134,312 = 134,312/x
  3. Step 3: Cross multiply
    84,836x = 134,312 × 134,312
  4. Step 4: Simplify right side
    84,836x = 18,039,713,344
  5. Step 5: Solve for x
    x = 18,039,713,344/84,836
  6. Step 6: Final answer
    x = 212,642.20

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.