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Finding the Third Proportional to 222,114 and 316,557

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Solution

The third proportional to 222,114 and 316,557 is: 451,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,114 : 316,557 = 316,557 : x
  2. Step 2: Convert to fraction form
    222,114/316,557 = 316,557/x
  3. Step 3: Cross multiply
    222,114x = 316,557 × 316,557
  4. Step 4: Simplify right side
    222,114x = 100,208,334,249
  5. Step 5: Solve for x
    x = 100,208,334,249/222,114
  6. Step 6: Final answer
    x = 451,157.22

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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.