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Finding the Fourth Proportional to 140,887.49, 194,444.64 and 87,189.80

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Solution

The fourth proportional to 140,887.49, 194,444.64 and 87,189.80 is: 120,334.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,887.49 : 194,444.64 = 87,189.80 : x
  2. Step 2: Convert to fraction form
    140,887.49/194,444.64 = 87,189.80/x
  3. Step 3: Cross multiply
    140,887.49x = 194,444.64 × 87,189.80
  4. Step 4: Simplify right side
    140,887.49x = 16,953,588,300.45
  5. Step 5: Solve for x
    x = 16,953,588,300.45/140,887.49
  6. Step 6: Final answer
    x = 120,334.24

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