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Finding the Fourth Proportional to 191,786.48, 285,415.28 and 185,400.65

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Solution

The fourth proportional to 191,786.48, 285,415.28 and 185,400.65 is: 275,911.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,786.48 : 285,415.28 = 185,400.65 : x
  2. Step 2: Convert to fraction form
    191,786.48/285,415.28 = 185,400.65/x
  3. Step 3: Cross multiply
    191,786.48x = 285,415.28 × 185,400.65
  4. Step 4: Simplify right side
    191,786.48x = 52,916,178,218.47
  5. Step 5: Solve for x
    x = 52,916,178,218.47/191,786.48
  6. Step 6: Final answer
    x = 275,911.93

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