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Finding the Third Proportional to 222,170.25 and 317,479.50

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Solution

The third proportional to 222,170.25 and 317,479.50 is: 453,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,170.25 : 317,479.50 = 317,479.50 : x
  2. Step 2: Convert to fraction form
    222,170.25/317,479.50 = 317,479.50/x
  3. Step 3: Cross multiply
    222,170.25x = 317,479.50 × 317,479.50
  4. Step 4: Simplify right side
    222,170.25x = 100,793,232,920.25
  5. Step 5: Solve for x
    x = 100,793,232,920.25/222,170.25
  6. Step 6: Final answer
    x = 453,675.65

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.