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Finding the Third Proportional to 113,378 and 247,168

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Solution

The third proportional to 113,378 and 247,168 is: 538,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,378 : 247,168 = 247,168 : x
  2. Step 2: Convert to fraction form
    113,378/247,168 = 247,168/x
  3. Step 3: Cross multiply
    113,378x = 247,168 × 247,168
  4. Step 4: Simplify right side
    113,378x = 61,092,020,224
  5. Step 5: Solve for x
    x = 61,092,020,224/113,378
  6. Step 6: Final answer
    x = 538,834.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.