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Finding the Third Proportional to 68,036.20 and 108,068.55

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Solution

The third proportional to 68,036.20 and 108,068.55 is: 171,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,036.20 : 108,068.55 = 108,068.55 : x
  2. Step 2: Convert to fraction form
    68,036.20/108,068.55 = 108,068.55/x
  3. Step 3: Cross multiply
    68,036.20x = 108,068.55 × 108,068.55
  4. Step 4: Simplify right side
    68,036.20x = 11,678,812,512.25
  5. Step 5: Solve for x
    x = 11,678,812,512.25/68,036.20
  6. Step 6: Final answer
    x = 171,655.85

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.