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Finding the Fourth Proportional to 304,486,170.78, 420,191,330.40 and 165,256,934.34

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Solution

The fourth proportional to 304,486,170.78, 420,191,330.40 and 165,256,934.34 is: 228,054,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,486,170.78 : 420,191,330.40 = 165,256,934.34 : x
  2. Step 2: Convert to fraction form
    304,486,170.78/420,191,330.40 = 165,256,934.34/x
  3. Step 3: Cross multiply
    304,486,170.78x = 420,191,330.40 × 165,256,934.34
  4. Step 4: Simplify right side
    304,486,170.78x = 69,439,531,098,150,040
  5. Step 5: Solve for x
    x = 69,439,531,098,150,040/304,486,170.78
  6. Step 6: Final answer
    x = 228,054,794.48

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