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Finding the Third Proportional to 180,631.69 and 277,749

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Solution

The third proportional to 180,631.69 and 277,749 is: 427,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,631.69 : 277,749 = 277,749 : x
  2. Step 2: Convert to fraction form
    180,631.69/277,749 = 277,749/x
  3. Step 3: Cross multiply
    180,631.69x = 277,749 × 277,749
  4. Step 4: Simplify right side
    180,631.69x = 77,144,507,001
  5. Step 5: Solve for x
    x = 77,144,507,001/180,631.69
  6. Step 6: Final answer
    x = 427,081.80

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.