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Finding the Fourth Proportional to 100,567.85, 138,784.52 and 55,246.84

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Solution

The fourth proportional to 100,567.85, 138,784.52 and 55,246.84 is: 76,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,567.85 : 138,784.52 = 55,246.84 : x
  2. Step 2: Convert to fraction form
    100,567.85/138,784.52 = 55,246.84/x
  3. Step 3: Cross multiply
    100,567.85x = 138,784.52 × 55,246.84
  4. Step 4: Simplify right side
    100,567.85x = 7,667,406,170.92
  5. Step 5: Solve for x
    x = 7,667,406,170.92/100,567.85
  6. Step 6: Final answer
    x = 76,241.13

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