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Finding the Fourth Proportional to 197,148.60, 295,722.90 and 163,906.20

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Solution

The fourth proportional to 197,148.60, 295,722.90 and 163,906.20 is: 245,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,148.60 : 295,722.90 = 163,906.20 : x
  2. Step 2: Convert to fraction form
    197,148.60/295,722.90 = 163,906.20/x
  3. Step 3: Cross multiply
    197,148.60x = 295,722.90 × 163,906.20
  4. Step 4: Simplify right side
    197,148.60x = 48,470,816,791.98
  5. Step 5: Solve for x
    x = 48,470,816,791.98/197,148.60
  6. Step 6: Final answer
    x = 245,859.30

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1.5x scale

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.