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Finding the Third Proportional to 53,871 and 117,534

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Solution

The third proportional to 53,871 and 117,534 is: 256,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,871 : 117,534 = 117,534 : x
  2. Step 2: Convert to fraction form
    53,871/117,534 = 117,534/x
  3. Step 3: Cross multiply
    53,871x = 117,534 × 117,534
  4. Step 4: Simplify right side
    53,871x = 13,814,241,156
  5. Step 5: Solve for x
    x = 13,814,241,156/53,871
  6. Step 6: Final answer
    x = 256,431.87

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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.