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Finding the Third Proportional to 77,168 and 115,968

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Solution

The third proportional to 77,168 and 115,968 is: 174,276.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,168 : 115,968 = 115,968 : x
  2. Step 2: Convert to fraction form
    77,168/115,968 = 115,968/x
  3. Step 3: Cross multiply
    77,168x = 115,968 × 115,968
  4. Step 4: Simplify right side
    77,168x = 13,448,577,024
  5. Step 5: Solve for x
    x = 13,448,577,024/77,168
  6. Step 6: Final answer
    x = 174,276.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.