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Finding the Third Proportional to 70,874 and 106,631.50

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Solution

The third proportional to 70,874 and 106,631.50 is: 160,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,874 : 106,631.50 = 106,631.50 : x
  2. Step 2: Convert to fraction form
    70,874/106,631.50 = 106,631.50/x
  3. Step 3: Cross multiply
    70,874x = 106,631.50 × 106,631.50
  4. Step 4: Simplify right side
    70,874x = 11,370,276,792.25
  5. Step 5: Solve for x
    x = 11,370,276,792.25/70,874
  6. Step 6: Final answer
    x = 160,429.45

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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.