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Finding the Third Proportional to 86,755.64 and 118,189.55

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Solution

The third proportional to 86,755.64 and 118,189.55 is: 161,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,755.64 : 118,189.55 = 118,189.55 : x
  2. Step 2: Convert to fraction form
    86,755.64/118,189.55 = 118,189.55/x
  3. Step 3: Cross multiply
    86,755.64x = 118,189.55 × 118,189.55
  4. Step 4: Simplify right side
    86,755.64x = 13,968,768,990.52
  5. Step 5: Solve for x
    x = 13,968,768,990.52/86,755.64
  6. Step 6: Final answer
    x = 161,012.80

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.