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Finding the Third Proportional to 85,143 and 124,698

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Solution

The third proportional to 85,143 and 124,698 is: 182,629.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,143 : 124,698 = 124,698 : x
  2. Step 2: Convert to fraction form
    85,143/124,698 = 124,698/x
  3. Step 3: Cross multiply
    85,143x = 124,698 × 124,698
  4. Step 4: Simplify right side
    85,143x = 15,549,591,204
  5. Step 5: Solve for x
    x = 15,549,591,204/85,143
  6. Step 6: Final answer
    x = 182,629.12

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.