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Finding the Fourth Proportional to 92,831.45, 128,107.11 and 50,389.98

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Solution

The fourth proportional to 92,831.45, 128,107.11 and 50,389.98 is: 69,538.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,831.45 : 128,107.11 = 50,389.98 : x
  2. Step 2: Convert to fraction form
    92,831.45/128,107.11 = 50,389.98/x
  3. Step 3: Cross multiply
    92,831.45x = 128,107.11 × 50,389.98
  4. Step 4: Simplify right side
    92,831.45x = 6,455,314,710.76
  5. Step 5: Solve for x
    x = 6,455,314,710.76/92,831.45
  6. Step 6: Final answer
    x = 69,538.02

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