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Finding the Fourth Proportional to 300,890.52, 415,271.50 and 186,206.10

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Solution

The fourth proportional to 300,890.52, 415,271.50 and 186,206.10 is: 256,990.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,890.52 : 415,271.50 = 186,206.10 : x
  2. Step 2: Convert to fraction form
    300,890.52/415,271.50 = 186,206.10/x
  3. Step 3: Cross multiply
    300,890.52x = 415,271.50 × 186,206.10
  4. Step 4: Simplify right side
    300,890.52x = 77,326,086,456.15
  5. Step 5: Solve for x
    x = 77,326,086,456.15/300,890.52
  6. Step 6: Final answer
    x = 256,990.77

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