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Finding the Third Proportional to 248,153.25 and 371,238.75

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Solution

The third proportional to 248,153.25 and 371,238.75 is: 555,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,153.25 : 371,238.75 = 371,238.75 : x
  2. Step 2: Convert to fraction form
    248,153.25/371,238.75 = 371,238.75/x
  3. Step 3: Cross multiply
    248,153.25x = 371,238.75 × 371,238.75
  4. Step 4: Simplify right side
    248,153.25x = 137,818,209,501.56
  5. Step 5: Solve for x
    x = 137,818,209,501.56/248,153.25
  6. Step 6: Final answer
    x = 555,375.40

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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.