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Finding the Third Proportional to 112,938 and 165,638

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Solution

The third proportional to 112,938 and 165,638 is: 242,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,938 : 165,638 = 165,638 : x
  2. Step 2: Convert to fraction form
    112,938/165,638 = 165,638/x
  3. Step 3: Cross multiply
    112,938x = 165,638 × 165,638
  4. Step 4: Simplify right side
    112,938x = 27,435,947,044
  5. Step 5: Solve for x
    x = 27,435,947,044/112,938
  6. Step 6: Final answer
    x = 242,929.28

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.