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Finding the Third Proportional to 217,662.75 and 336,332.25

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Solution

The third proportional to 217,662.75 and 336,332.25 is: 519,700.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,662.75 : 336,332.25 = 336,332.25 : x
  2. Step 2: Convert to fraction form
    217,662.75/336,332.25 = 336,332.25/x
  3. Step 3: Cross multiply
    217,662.75x = 336,332.25 × 336,332.25
  4. Step 4: Simplify right side
    217,662.75x = 113,119,382,390.06
  5. Step 5: Solve for x
    x = 113,119,382,390.06/217,662.75
  6. Step 6: Final answer
    x = 519,700.24

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.