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Finding the Third Proportional to 45,131.25 and 70,164

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Solution

The third proportional to 45,131.25 and 70,164 is: 109,081.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,131.25 : 70,164 = 70,164 : x
  2. Step 2: Convert to fraction form
    45,131.25/70,164 = 70,164/x
  3. Step 3: Cross multiply
    45,131.25x = 70,164 × 70,164
  4. Step 4: Simplify right side
    45,131.25x = 4,922,986,896
  5. Step 5: Solve for x
    x = 4,922,986,896/45,131.25
  6. Step 6: Final answer
    x = 109,081.55

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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.