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Finding the Third Proportional to 117,015.75 and 167,220

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Solution

The third proportional to 117,015.75 and 167,220 is: 238,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,015.75 : 167,220 = 167,220 : x
  2. Step 2: Convert to fraction form
    117,015.75/167,220 = 167,220/x
  3. Step 3: Cross multiply
    117,015.75x = 167,220 × 167,220
  4. Step 4: Simplify right side
    117,015.75x = 27,962,528,400
  5. Step 5: Solve for x
    x = 27,962,528,400/117,015.75
  6. Step 6: Final answer
    x = 238,963.80

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.