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Finding the Third Proportional to 68,211 and 105,232.50

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Solution

The third proportional to 68,211 and 105,232.50 is: 162,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,211 : 105,232.50 = 105,232.50 : x
  2. Step 2: Convert to fraction form
    68,211/105,232.50 = 105,232.50/x
  3. Step 3: Cross multiply
    68,211x = 105,232.50 × 105,232.50
  4. Step 4: Simplify right side
    68,211x = 11,073,879,056.25
  5. Step 5: Solve for x
    x = 11,073,879,056.25/68,211
  6. Step 6: Final answer
    x = 162,347.41

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.