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Finding the Third Proportional to 70,576.50 and 105,855

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Solution

The third proportional to 70,576.50 and 105,855 is: 158,767.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,576.50 : 105,855 = 105,855 : x
  2. Step 2: Convert to fraction form
    70,576.50/105,855 = 105,855/x
  3. Step 3: Cross multiply
    70,576.50x = 105,855 × 105,855
  4. Step 4: Simplify right side
    70,576.50x = 11,205,281,025
  5. Step 5: Solve for x
    x = 11,205,281,025/70,576.50
  6. Step 6: Final answer
    x = 158,767.88

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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.