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Finding the Third Proportional to 102,613.50 and 163,923

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Solution

The third proportional to 102,613.50 and 163,923 is: 261,863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,613.50 : 163,923 = 163,923 : x
  2. Step 2: Convert to fraction form
    102,613.50/163,923 = 163,923/x
  3. Step 3: Cross multiply
    102,613.50x = 163,923 × 163,923
  4. Step 4: Simplify right side
    102,613.50x = 26,870,749,929
  5. Step 5: Solve for x
    x = 26,870,749,929/102,613.50
  6. Step 6: Final answer
    x = 261,863.69

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.