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Finding the Third Proportional to 68,874.47 and 105,350.63

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Solution

The third proportional to 68,874.47 and 105,350.63 is: 161,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,874.47 : 105,350.63 = 105,350.63 : x
  2. Step 2: Convert to fraction form
    68,874.47/105,350.63 = 105,350.63/x
  3. Step 3: Cross multiply
    68,874.47x = 105,350.63 × 105,350.63
  4. Step 4: Simplify right side
    68,874.47x = 11,098,754,187.89
  5. Step 5: Solve for x
    x = 11,098,754,187.89/68,874.47
  6. Step 6: Final answer
    x = 161,144.68

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.