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Finding the Fourth Proportional to 68,694.68, 94,803.92 and 43,222.88

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Solution

The fourth proportional to 68,694.68, 94,803.92 and 43,222.88 is: 59,650.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,694.68 : 94,803.92 = 43,222.88 : x
  2. Step 2: Convert to fraction form
    68,694.68/94,803.92 = 43,222.88/x
  3. Step 3: Cross multiply
    68,694.68x = 94,803.92 × 43,222.88
  4. Step 4: Simplify right side
    68,694.68x = 4,097,698,440.69
  5. Step 5: Solve for x
    x = 4,097,698,440.69/68,694.68
  6. Step 6: Final answer
    x = 59,650.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.