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Finding the Fourth Proportional to 268,563.29, 402,845.03 and 68,883.66

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Solution

The fourth proportional to 268,563.29, 402,845.03 and 68,883.66 is: 103,325.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,563.29 : 402,845.03 = 68,883.66 : x
  2. Step 2: Convert to fraction form
    268,563.29/402,845.03 = 68,883.66/x
  3. Step 3: Cross multiply
    268,563.29x = 402,845.03 × 68,883.66
  4. Step 4: Simplify right side
    268,563.29x = 27,749,440,251.42
  5. Step 5: Solve for x
    x = 27,749,440,251.42/268,563.29
  6. Step 6: Final answer
    x = 103,325.52

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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.