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Finding the Third Proportional to 76,939.88 and 118,189.13

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Solution

The third proportional to 76,939.88 and 118,189.13 is: 181,553.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939.88 : 118,189.13 = 118,189.13 : x
  2. Step 2: Convert to fraction form
    76,939.88/118,189.13 = 118,189.13/x
  3. Step 3: Cross multiply
    76,939.88x = 118,189.13 × 118,189.13
  4. Step 4: Simplify right side
    76,939.88x = 13,968,669,268.27
  5. Step 5: Solve for x
    x = 13,968,669,268.27/76,939.88
  6. Step 6: Final answer
    x = 181,553.05

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.