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Finding the Third Proportional to 111,137.25 and 243,354.75

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Solution

The third proportional to 111,137.25 and 243,354.75 is: 532,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,137.25 : 243,354.75 = 243,354.75 : x
  2. Step 2: Convert to fraction form
    111,137.25/243,354.75 = 243,354.75/x
  3. Step 3: Cross multiply
    111,137.25x = 243,354.75 × 243,354.75
  4. Step 4: Simplify right side
    111,137.25x = 59,221,534,347.56
  5. Step 5: Solve for x
    x = 59,221,534,347.56/111,137.25
  6. Step 6: Final answer
    x = 532,868.45

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.