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Finding the Third Proportional to 77,338.50 and 169,617

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Solution

The third proportional to 77,338.50 and 169,617 is: 372,000.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,338.50 : 169,617 = 169,617 : x
  2. Step 2: Convert to fraction form
    77,338.50/169,617 = 169,617/x
  3. Step 3: Cross multiply
    77,338.50x = 169,617 × 169,617
  4. Step 4: Simplify right side
    77,338.50x = 28,769,926,689
  5. Step 5: Solve for x
    x = 28,769,926,689/77,338.50
  6. Step 6: Final answer
    x = 372,000.06

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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.