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Finding the Third Proportional to 76,879.13 and 168,562.69

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Solution

The third proportional to 76,879.13 and 168,562.69 is: 369,585.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,879.13 : 168,562.69 = 168,562.69 : x
  2. Step 2: Convert to fraction form
    76,879.13/168,562.69 = 168,562.69/x
  3. Step 3: Cross multiply
    76,879.13x = 168,562.69 × 168,562.69
  4. Step 4: Simplify right side
    76,879.13x = 28,413,379,617.22
  5. Step 5: Solve for x
    x = 28,413,379,617.22/76,879.13
  6. Step 6: Final answer
    x = 369,585.11

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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.