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Finding the Third Proportional to 115,280.72 and 236,256.75

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Solution

The third proportional to 115,280.72 and 236,256.75 is: 484,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,280.72 : 236,256.75 = 236,256.75 : x
  2. Step 2: Convert to fraction form
    115,280.72/236,256.75 = 236,256.75/x
  3. Step 3: Cross multiply
    115,280.72x = 236,256.75 × 236,256.75
  4. Step 4: Simplify right side
    115,280.72x = 55,817,251,920.56
  5. Step 5: Solve for x
    x = 55,817,251,920.56/115,280.72
  6. Step 6: Final answer
    x = 484,185.50

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.