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Finding the Third Proportional to 124,638 and 174,888

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Solution

The third proportional to 124,638 and 174,888 is: 245,397.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,638 : 174,888 = 174,888 : x
  2. Step 2: Convert to fraction form
    124,638/174,888 = 174,888/x
  3. Step 3: Cross multiply
    124,638x = 174,888 × 174,888
  4. Step 4: Simplify right side
    124,638x = 30,585,812,544
  5. Step 5: Solve for x
    x = 30,585,812,544/124,638
  6. Step 6: Final answer
    x = 245,397.17

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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.