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Finding the Third Proportional to 64,512 and 141,768

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Solution

The third proportional to 64,512 and 141,768 is: 311,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,512 : 141,768 = 141,768 : x
  2. Step 2: Convert to fraction form
    64,512/141,768 = 141,768/x
  3. Step 3: Cross multiply
    64,512x = 141,768 × 141,768
  4. Step 4: Simplify right side
    64,512x = 20,098,165,824
  5. Step 5: Solve for x
    x = 20,098,165,824/64,512
  6. Step 6: Final answer
    x = 311,541.51

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.