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Finding the Third Proportional to 106,560 and 142,161.75

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Solution

The third proportional to 106,560 and 142,161.75 is: 189,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,560 : 142,161.75 = 142,161.75 : x
  2. Step 2: Convert to fraction form
    106,560/142,161.75 = 142,161.75/x
  3. Step 3: Cross multiply
    106,560x = 142,161.75 × 142,161.75
  4. Step 4: Simplify right side
    106,560x = 20,209,963,163.06
  5. Step 5: Solve for x
    x = 20,209,963,163.06/106,560
  6. Step 6: Final answer
    x = 189,658.06

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.