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Finding the Fourth Proportional to 79,198.32, 118,469.16 and 60,335.64

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Solution

The fourth proportional to 79,198.32, 118,469.16 and 60,335.64 is: 90,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,198.32 : 118,469.16 = 60,335.64 : x
  2. Step 2: Convert to fraction form
    79,198.32/118,469.16 = 60,335.64/x
  3. Step 3: Cross multiply
    79,198.32x = 118,469.16 × 60,335.64
  4. Step 4: Simplify right side
    79,198.32x = 7,147,912,588.86
  5. Step 5: Solve for x
    x = 7,147,912,588.86/79,198.32
  6. Step 6: Final answer
    x = 90,253.34

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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.