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Finding the Third Proportional to 142,764 and 187,779

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Solution

The third proportional to 142,764 and 187,779 is: 246,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,764 : 187,779 = 187,779 : x
  2. Step 2: Convert to fraction form
    142,764/187,779 = 187,779/x
  3. Step 3: Cross multiply
    142,764x = 187,779 × 187,779
  4. Step 4: Simplify right side
    142,764x = 35,260,952,841
  5. Step 5: Solve for x
    x = 35,260,952,841/142,764
  6. Step 6: Final answer
    x = 246,987.71

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.