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Finding the Fourth Proportional to 192,456,172.60, 288,684,258.90 and 186,787,468.60

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Solution

The fourth proportional to 192,456,172.60, 288,684,258.90 and 186,787,468.60 is: 280,181,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,456,172.60 : 288,684,258.90 = 186,787,468.60 : x
  2. Step 2: Convert to fraction form
    192,456,172.60/288,684,258.90 = 186,787,468.60/x
  3. Step 3: Cross multiply
    192,456,172.60x = 288,684,258.90 × 186,787,468.60
  4. Step 4: Simplify right side
    192,456,172.60x = 53,922,601,944,598,016
  5. Step 5: Solve for x
    x = 53,922,601,944,598,016/192,456,172.60
  6. Step 6: Final answer
    x = 280,181,202.90

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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.