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Finding the Third Proportional to 122,853 and 266,604

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Solution

The third proportional to 122,853 and 266,604 is: 578,558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,853 : 266,604 = 266,604 : x
  2. Step 2: Convert to fraction form
    122,853/266,604 = 266,604/x
  3. Step 3: Cross multiply
    122,853x = 266,604 × 266,604
  4. Step 4: Simplify right side
    122,853x = 71,077,692,816
  5. Step 5: Solve for x
    x = 71,077,692,816/122,853
  6. Step 6: Final answer
    x = 578,558.87

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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.