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Finding the Third Proportional to 54,356 and 75,108

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Solution

The third proportional to 54,356 and 75,108 is: 103,782.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,356 : 75,108 = 75,108 : x
  2. Step 2: Convert to fraction form
    54,356/75,108 = 75,108/x
  3. Step 3: Cross multiply
    54,356x = 75,108 × 75,108
  4. Step 4: Simplify right side
    54,356x = 5,641,211,664
  5. Step 5: Solve for x
    x = 5,641,211,664/54,356
  6. Step 6: Final answer
    x = 103,782.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.