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Finding the Third Proportional to 79,157.25 and 122,411.25

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Solution

The third proportional to 79,157.25 and 122,411.25 is: 189,300.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,157.25 : 122,411.25 = 122,411.25 : x
  2. Step 2: Convert to fraction form
    79,157.25/122,411.25 = 122,411.25/x
  3. Step 3: Cross multiply
    79,157.25x = 122,411.25 × 122,411.25
  4. Step 4: Simplify right side
    79,157.25x = 14,984,514,126.56
  5. Step 5: Solve for x
    x = 14,984,514,126.56/79,157.25
  6. Step 6: Final answer
    x = 189,300.59

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.