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Finding the Third Proportional to 84,790 and 124,719

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Solution

The third proportional to 84,790 and 124,719 is: 183,451.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,790 : 124,719 = 124,719 : x
  2. Step 2: Convert to fraction form
    84,790/124,719 = 124,719/x
  3. Step 3: Cross multiply
    84,790x = 124,719 × 124,719
  4. Step 4: Simplify right side
    84,790x = 15,554,828,961
  5. Step 5: Solve for x
    x = 15,554,828,961/84,790
  6. Step 6: Final answer
    x = 183,451.22

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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.