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Finding the Fourth Proportional to 192,694,698.80, 289,042,048.20 and 63,322,276.40

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Solution

The fourth proportional to 192,694,698.80, 289,042,048.20 and 63,322,276.40 is: 94,983,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,694,698.80 : 289,042,048.20 = 63,322,276.40 : x
  2. Step 2: Convert to fraction form
    192,694,698.80/289,042,048.20 = 63,322,276.40/x
  3. Step 3: Cross multiply
    192,694,698.80x = 289,042,048.20 × 63,322,276.40
  4. Step 4: Simplify right side
    192,694,698.80x = 18,302,800,467,342,520
  5. Step 5: Solve for x
    x = 18,302,800,467,342,520/192,694,698.80
  6. Step 6: Final answer
    x = 94,983,414.60

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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.