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Finding the Fourth Proportional to 268,523.54, 402,755.20 and 68,848.62

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Solution

The fourth proportional to 268,523.54, 402,755.20 and 68,848.62 is: 103,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,523.54 : 402,755.20 = 68,848.62 : x
  2. Step 2: Convert to fraction form
    268,523.54/402,755.20 = 68,848.62/x
  3. Step 3: Cross multiply
    268,523.54x = 402,755.20 × 68,848.62
  4. Step 4: Simplify right side
    268,523.54x = 27,729,138,035.37
  5. Step 5: Solve for x
    x = 27,729,138,035.37/268,523.54
  6. Step 6: Final answer
    x = 103,265.20

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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.