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Finding the Third Proportional to 68,424.75 and 102,361.50

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Solution

The third proportional to 68,424.75 and 102,361.50 is: 153,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,424.75 : 102,361.50 = 102,361.50 : x
  2. Step 2: Convert to fraction form
    68,424.75/102,361.50 = 102,361.50/x
  3. Step 3: Cross multiply
    68,424.75x = 102,361.50 × 102,361.50
  4. Step 4: Simplify right side
    68,424.75x = 10,477,876,682.25
  5. Step 5: Solve for x
    x = 10,477,876,682.25/68,424.75
  6. Step 6: Final answer
    x = 153,129.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.