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Finding the Third Proportional to 121,448 and 169,832

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Solution

The third proportional to 121,448 and 169,832 is: 237,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,448 : 169,832 = 169,832 : x
  2. Step 2: Convert to fraction form
    121,448/169,832 = 169,832/x
  3. Step 3: Cross multiply
    121,448x = 169,832 × 169,832
  4. Step 4: Simplify right side
    121,448x = 28,842,908,224
  5. Step 5: Solve for x
    x = 28,842,908,224/121,448
  6. Step 6: Final answer
    x = 237,491.83

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.