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Finding the Third Proportional to 133,442 and 290,116

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Solution

The third proportional to 133,442 and 290,116 is: 630,740.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,442 : 290,116 = 290,116 : x
  2. Step 2: Convert to fraction form
    133,442/290,116 = 290,116/x
  3. Step 3: Cross multiply
    133,442x = 290,116 × 290,116
  4. Step 4: Simplify right side
    133,442x = 84,167,293,456
  5. Step 5: Solve for x
    x = 84,167,293,456/133,442
  6. Step 6: Final answer
    x = 630,740.65

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.