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Finding the Third Proportional to 77,958 and 169,582

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Solution

The third proportional to 77,958 and 169,582 is: 368,891.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,958 : 169,582 = 169,582 : x
  2. Step 2: Convert to fraction form
    77,958/169,582 = 169,582/x
  3. Step 3: Cross multiply
    77,958x = 169,582 × 169,582
  4. Step 4: Simplify right side
    77,958x = 28,758,054,724
  5. Step 5: Solve for x
    x = 28,758,054,724/77,958
  6. Step 6: Final answer
    x = 368,891.64

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.