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Finding the Third Proportional to 77,238.88 and 169,240.75

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Solution

The third proportional to 77,238.88 and 169,240.75 is: 370,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,238.88 : 169,240.75 = 169,240.75 : x
  2. Step 2: Convert to fraction form
    77,238.88/169,240.75 = 169,240.75/x
  3. Step 3: Cross multiply
    77,238.88x = 169,240.75 × 169,240.75
  4. Step 4: Simplify right side
    77,238.88x = 28,642,431,460.56
  5. Step 5: Solve for x
    x = 28,642,431,460.56/77,238.88
  6. Step 6: Final answer
    x = 370,829.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.