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Finding the Fourth Proportional to 192,700,204.80, 288,954,662.40 and 69,873,619.20

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Solution

The fourth proportional to 192,700,204.80, 288,954,662.40 and 69,873,619.20 is: 104,775,747.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,700,204.80 : 288,954,662.40 = 69,873,619.20 : x
  2. Step 2: Convert to fraction form
    192,700,204.80/288,954,662.40 = 69,873,619.20/x
  3. Step 3: Cross multiply
    192,700,204.80x = 288,954,662.40 × 69,873,619.20
  4. Step 4: Simplify right side
    192,700,204.80x = 20,190,308,046,602,156
  5. Step 5: Solve for x
    x = 20,190,308,046,602,156/192,700,204.80
  6. Step 6: Final answer
    x = 104,775,747.73

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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.