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Finding the Third Proportional to 135,615 and 197,266.50

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Solution

The third proportional to 135,615 and 197,266.50 is: 286,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,615 : 197,266.50 = 197,266.50 : x
  2. Step 2: Convert to fraction form
    135,615/197,266.50 = 197,266.50/x
  3. Step 3: Cross multiply
    135,615x = 197,266.50 × 197,266.50
  4. Step 4: Simplify right side
    135,615x = 38,914,072,022.25
  5. Step 5: Solve for x
    x = 38,914,072,022.25/135,615
  6. Step 6: Final answer
    x = 286,945.19

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.