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Finding the Third Proportional to 84,636 and 124,290

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Solution

The third proportional to 84,636 and 124,290 is: 182,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,636 : 124,290 = 124,290 : x
  2. Step 2: Convert to fraction form
    84,636/124,290 = 124,290/x
  3. Step 3: Cross multiply
    84,636x = 124,290 × 124,290
  4. Step 4: Simplify right side
    84,636x = 15,448,004,100
  5. Step 5: Solve for x
    x = 15,448,004,100/84,636
  6. Step 6: Final answer
    x = 182,522.85

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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.