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Finding the Fourth Proportional to 264,728, 397,092 and 67,736

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Solution

The fourth proportional to 264,728, 397,092 and 67,736 is: 101,604

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,728 : 397,092 = 67,736 : x
  2. Step 2: Convert to fraction form
    264,728/397,092 = 67,736/x
  3. Step 3: Cross multiply
    264,728x = 397,092 × 67,736
  4. Step 4: Simplify right side
    264,728x = 26,897,423,712
  5. Step 5: Solve for x
    x = 26,897,423,712/264,728
  6. Step 6: Final answer
    x = 101,604

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.