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Finding the Third Proportional to 77,178.75 and 116,589.75

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Solution

The third proportional to 77,178.75 and 116,589.75 is: 176,125.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,178.75 : 116,589.75 = 116,589.75 : x
  2. Step 2: Convert to fraction form
    77,178.75/116,589.75 = 116,589.75/x
  3. Step 3: Cross multiply
    77,178.75x = 116,589.75 × 116,589.75
  4. Step 4: Simplify right side
    77,178.75x = 13,593,169,805.06
  5. Step 5: Solve for x
    x = 13,593,169,805.06/77,178.75
  6. Step 6: Final answer
    x = 176,125.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.