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Finding the Third Proportional to 207,719.44 and 339,155.86

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Solution

The third proportional to 207,719.44 and 339,155.86 is: 553,759.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,719.44 : 339,155.86 = 339,155.86 : x
  2. Step 2: Convert to fraction form
    207,719.44/339,155.86 = 339,155.86/x
  3. Step 3: Cross multiply
    207,719.44x = 339,155.86 × 339,155.86
  4. Step 4: Simplify right side
    207,719.44x = 115,026,696,948.40
  5. Step 5: Solve for x
    x = 115,026,696,948.40/207,719.44
  6. Step 6: Final answer
    x = 553,759.91

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.