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Finding the Third Proportional to 43,153.50 and 68,436

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Solution

The third proportional to 43,153.50 and 68,436 is: 108,530.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,153.50 : 68,436 = 68,436 : x
  2. Step 2: Convert to fraction form
    43,153.50/68,436 = 68,436/x
  3. Step 3: Cross multiply
    43,153.50x = 68,436 × 68,436
  4. Step 4: Simplify right side
    43,153.50x = 4,683,486,096
  5. Step 5: Solve for x
    x = 4,683,486,096/43,153.50
  6. Step 6: Final answer
    x = 108,530.85

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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.