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Finding the Third Proportional to 76,639.50 and 114,635.25

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Solution

The third proportional to 76,639.50 and 114,635.25 is: 171,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,639.50 : 114,635.25 = 114,635.25 : x
  2. Step 2: Convert to fraction form
    76,639.50/114,635.25 = 114,635.25/x
  3. Step 3: Cross multiply
    76,639.50x = 114,635.25 × 114,635.25
  4. Step 4: Simplify right side
    76,639.50x = 13,141,240,542.56
  5. Step 5: Solve for x
    x = 13,141,240,542.56/76,639.50
  6. Step 6: Final answer
    x = 171,468.24

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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.