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Finding the Third Proportional to 57,249 and 84,160

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Solution

The third proportional to 57,249 and 84,160 is: 123,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,249 : 84,160 = 84,160 : x
  2. Step 2: Convert to fraction form
    57,249/84,160 = 84,160/x
  3. Step 3: Cross multiply
    57,249x = 84,160 × 84,160
  4. Step 4: Simplify right side
    57,249x = 7,082,905,600
  5. Step 5: Solve for x
    x = 7,082,905,600/57,249
  6. Step 6: Final answer
    x = 123,721.04

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.