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Finding the Third Proportional to 42,168 and 93,660

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Solution

The third proportional to 42,168 and 93,660 is: 208,029.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,168 : 93,660 = 93,660 : x
  2. Step 2: Convert to fraction form
    42,168/93,660 = 93,660/x
  3. Step 3: Cross multiply
    42,168x = 93,660 × 93,660
  4. Step 4: Simplify right side
    42,168x = 8,772,195,600
  5. Step 5: Solve for x
    x = 8,772,195,600/42,168
  6. Step 6: Final answer
    x = 208,029.68

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.