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Finding the Third Proportional to 112,890 and 248,817.75

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Solution

The third proportional to 112,890 and 248,817.75 is: 548,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,890 : 248,817.75 = 248,817.75 : x
  2. Step 2: Convert to fraction form
    112,890/248,817.75 = 248,817.75/x
  3. Step 3: Cross multiply
    112,890x = 248,817.75 × 248,817.75
  4. Step 4: Simplify right side
    112,890x = 61,910,272,715.06
  5. Step 5: Solve for x
    x = 61,910,272,715.06/112,890
  6. Step 6: Final answer
    x = 548,412.37

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.