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Finding the Third Proportional to 106,429 and 163,638

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Solution

The third proportional to 106,429 and 163,638 is: 251,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,429 : 163,638 = 163,638 : x
  2. Step 2: Convert to fraction form
    106,429/163,638 = 163,638/x
  3. Step 3: Cross multiply
    106,429x = 163,638 × 163,638
  4. Step 4: Simplify right side
    106,429x = 26,777,395,044
  5. Step 5: Solve for x
    x = 26,777,395,044/106,429
  6. Step 6: Final answer
    x = 251,598.67

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.