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Finding the Third Proportional to 106,815.75 and 163,912.50

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Solution

The third proportional to 106,815.75 and 163,912.50 is: 251,529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,815.75 : 163,912.50 = 163,912.50 : x
  2. Step 2: Convert to fraction form
    106,815.75/163,912.50 = 163,912.50/x
  3. Step 3: Cross multiply
    106,815.75x = 163,912.50 × 163,912.50
  4. Step 4: Simplify right side
    106,815.75x = 26,867,307,656.25
  5. Step 5: Solve for x
    x = 26,867,307,656.25/106,815.75
  6. Step 6: Final answer
    x = 251,529.46

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.