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Finding the Third Proportional to 111,257 and 176,889

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Solution

The third proportional to 111,257 and 176,889 is: 281,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,257 : 176,889 = 176,889 : x
  2. Step 2: Convert to fraction form
    111,257/176,889 = 176,889/x
  3. Step 3: Cross multiply
    111,257x = 176,889 × 176,889
  4. Step 4: Simplify right side
    111,257x = 31,289,718,321
  5. Step 5: Solve for x
    x = 31,289,718,321/111,257
  6. Step 6: Final answer
    x = 281,238.20

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.