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Finding the Third Proportional to 73,311.75 and 102,312.75

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Solution

The third proportional to 73,311.75 and 102,312.75 is: 142,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,311.75 : 102,312.75 = 102,312.75 : x
  2. Step 2: Convert to fraction form
    73,311.75/102,312.75 = 102,312.75/x
  3. Step 3: Cross multiply
    73,311.75x = 102,312.75 × 102,312.75
  4. Step 4: Simplify right side
    73,311.75x = 10,467,898,812.56
  5. Step 5: Solve for x
    x = 10,467,898,812.56/73,311.75
  6. Step 6: Final answer
    x = 142,786.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.