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Finding the Third Proportional to 112,120 and 163,861

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Solution

The third proportional to 112,120 and 163,861 is: 239,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,120 : 163,861 = 163,861 : x
  2. Step 2: Convert to fraction form
    112,120/163,861 = 163,861/x
  3. Step 3: Cross multiply
    112,120x = 163,861 × 163,861
  4. Step 4: Simplify right side
    112,120x = 26,850,427,321
  5. Step 5: Solve for x
    x = 26,850,427,321/112,120
  6. Step 6: Final answer
    x = 239,479.37

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.