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Finding the Fourth Proportional to 268,201.86, 402,302.76 and 68,522.64

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Solution

The fourth proportional to 268,201.86, 402,302.76 and 68,522.64 is: 102,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,201.86 : 402,302.76 = 68,522.64 : x
  2. Step 2: Convert to fraction form
    268,201.86/402,302.76 = 68,522.64/x
  3. Step 3: Cross multiply
    268,201.86x = 402,302.76 × 68,522.64
  4. Step 4: Simplify right side
    268,201.86x = 27,566,847,194.49
  5. Step 5: Solve for x
    x = 27,566,847,194.49/268,201.86
  6. Step 6: Final answer
    x = 102,783.95

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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.