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Finding the Third Proportional to 68,036 and 105,603

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Solution

The third proportional to 68,036 and 105,603 is: 163,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,036 : 105,603 = 105,603 : x
  2. Step 2: Convert to fraction form
    68,036/105,603 = 105,603/x
  3. Step 3: Cross multiply
    68,036x = 105,603 × 105,603
  4. Step 4: Simplify right side
    68,036x = 11,151,993,609
  5. Step 5: Solve for x
    x = 11,151,993,609/68,036
  6. Step 6: Final answer
    x = 163,913.13

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.