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Finding the Fourth Proportional to 76,627.40, 114,936.43 and 28,586.76

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Solution

The fourth proportional to 76,627.40, 114,936.43 and 28,586.76 is: 42,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,627.40 : 114,936.43 = 28,586.76 : x
  2. Step 2: Convert to fraction form
    76,627.40/114,936.43 = 28,586.76/x
  3. Step 3: Cross multiply
    76,627.40x = 114,936.43 × 28,586.76
  4. Step 4: Simplify right side
    76,627.40x = 3,285,660,215.88
  5. Step 5: Solve for x
    x = 3,285,660,215.88/76,627.40
  6. Step 6: Final answer
    x = 42,878.40

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