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Finding the Fourth Proportional to 196,698.60, 295,163.10 and 72,052.20

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Solution

The fourth proportional to 196,698.60, 295,163.10 and 72,052.20 is: 108,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,698.60 : 295,163.10 = 72,052.20 : x
  2. Step 2: Convert to fraction form
    196,698.60/295,163.10 = 72,052.20/x
  3. Step 3: Cross multiply
    196,698.60x = 295,163.10 × 72,052.20
  4. Step 4: Simplify right side
    196,698.60x = 21,267,150,713.82
  5. Step 5: Solve for x
    x = 21,267,150,713.82/196,698.60
  6. Step 6: Final answer
    x = 108,120.50

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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.