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Finding the Third Proportional to 142,782.75 and 187,656.75

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Solution

The third proportional to 142,782.75 and 187,656.75 is: 246,633.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,782.75 : 187,656.75 = 187,656.75 : x
  2. Step 2: Convert to fraction form
    142,782.75/187,656.75 = 187,656.75/x
  3. Step 3: Cross multiply
    142,782.75x = 187,656.75 × 187,656.75
  4. Step 4: Simplify right side
    142,782.75x = 35,215,055,820.56
  5. Step 5: Solve for x
    x = 35,215,055,820.56/142,782.75
  6. Step 6: Final answer
    x = 246,633.83

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.