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Finding the Fourth Proportional to 389,240.42, 583,857.08 and 123,000.90

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Solution

The fourth proportional to 389,240.42, 583,857.08 and 123,000.90 is: 184,500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,240.42 : 583,857.08 = 123,000.90 : x
  2. Step 2: Convert to fraction form
    389,240.42/583,857.08 = 123,000.90/x
  3. Step 3: Cross multiply
    389,240.42x = 583,857.08 × 123,000.90
  4. Step 4: Simplify right side
    389,240.42x = 71,814,946,311.37
  5. Step 5: Solve for x
    x = 71,814,946,311.37/389,240.42
  6. Step 6: Final answer
    x = 184,500.23

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