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Finding the Fourth Proportional to 105,238.16, 157,605.05 and 76,698.62

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Solution

The fourth proportional to 105,238.16, 157,605.05 and 76,698.62 is: 114,864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,238.16 : 157,605.05 = 76,698.62 : x
  2. Step 2: Convert to fraction form
    105,238.16/157,605.05 = 76,698.62/x
  3. Step 3: Cross multiply
    105,238.16x = 157,605.05 × 76,698.62
  4. Step 4: Simplify right side
    105,238.16x = 12,088,089,243.75
  5. Step 5: Solve for x
    x = 12,088,089,243.75/105,238.16
  6. Step 6: Final answer
    x = 114,864.13

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