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Finding the Third Proportional to 243,078.75 and 367,972.03

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Solution

The third proportional to 243,078.75 and 367,972.03 is: 557,035.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,078.75 : 367,972.03 = 367,972.03 : x
  2. Step 2: Convert to fraction form
    243,078.75/367,972.03 = 367,972.03/x
  3. Step 3: Cross multiply
    243,078.75x = 367,972.03 × 367,972.03
  4. Step 4: Simplify right side
    243,078.75x = 135,403,415,782.25
  5. Step 5: Solve for x
    x = 135,403,415,782.25/243,078.75
  6. Step 6: Final answer
    x = 557,035.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.