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Finding the Third Proportional to 75,947 and 117,900

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Solution

The third proportional to 75,947 and 117,900 is: 183,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,947 : 117,900 = 117,900 : x
  2. Step 2: Convert to fraction form
    75,947/117,900 = 117,900/x
  3. Step 3: Cross multiply
    75,947x = 117,900 × 117,900
  4. Step 4: Simplify right side
    75,947x = 13,900,410,000
  5. Step 5: Solve for x
    x = 13,900,410,000/75,947
  6. Step 6: Final answer
    x = 183,027.77

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.