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Finding the Third Proportional to 130,638.25 and 195,449.50

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Solution

The third proportional to 130,638.25 and 195,449.50 is: 292,414.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,638.25 : 195,449.50 = 195,449.50 : x
  2. Step 2: Convert to fraction form
    130,638.25/195,449.50 = 195,449.50/x
  3. Step 3: Cross multiply
    130,638.25x = 195,449.50 × 195,449.50
  4. Step 4: Simplify right side
    130,638.25x = 38,200,507,050.25
  5. Step 5: Solve for x
    x = 38,200,507,050.25/130,638.25
  6. Step 6: Final answer
    x = 292,414.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.