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Finding the Third Proportional to 76,200.75 and 115,242.75

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Solution

The third proportional to 76,200.75 and 115,242.75 is: 174,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,200.75 : 115,242.75 = 115,242.75 : x
  2. Step 2: Convert to fraction form
    76,200.75/115,242.75 = 115,242.75/x
  3. Step 3: Cross multiply
    76,200.75x = 115,242.75 × 115,242.75
  4. Step 4: Simplify right side
    76,200.75x = 13,280,891,427.56
  5. Step 5: Solve for x
    x = 13,280,891,427.56/76,200.75
  6. Step 6: Final answer
    x = 174,288.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.