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Finding the Third Proportional to 212,766.75 and 459,156.75

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Solution

The third proportional to 212,766.75 and 459,156.75 is: 990,873.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,766.75 : 459,156.75 = 459,156.75 : x
  2. Step 2: Convert to fraction form
    212,766.75/459,156.75 = 459,156.75/x
  3. Step 3: Cross multiply
    212,766.75x = 459,156.75 × 459,156.75
  4. Step 4: Simplify right side
    212,766.75x = 210,824,921,070.56
  5. Step 5: Solve for x
    x = 210,824,921,070.56/212,766.75
  6. Step 6: Final answer
    x = 990,873.44

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.