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Finding the Fourth Proportional to 259,992.72, 389,989.08 and 93,780.72

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Solution

The fourth proportional to 259,992.72, 389,989.08 and 93,780.72 is: 140,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,992.72 : 389,989.08 = 93,780.72 : x
  2. Step 2: Convert to fraction form
    259,992.72/389,989.08 = 93,780.72/x
  3. Step 3: Cross multiply
    259,992.72x = 389,989.08 × 93,780.72
  4. Step 4: Simplify right side
    259,992.72x = 36,573,456,714.54
  5. Step 5: Solve for x
    x = 36,573,456,714.54/259,992.72
  6. Step 6: Final answer
    x = 140,671.08

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