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Finding the Fourth Proportional to 103,704.02, 155,429.64 and 53,756.60

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Solution

The fourth proportional to 103,704.02, 155,429.64 and 53,756.60 is: 80,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,704.02 : 155,429.64 = 53,756.60 : x
  2. Step 2: Convert to fraction form
    103,704.02/155,429.64 = 53,756.60/x
  3. Step 3: Cross multiply
    103,704.02x = 155,429.64 × 53,756.60
  4. Step 4: Simplify right side
    103,704.02x = 8,355,368,985.62
  5. Step 5: Solve for x
    x = 8,355,368,985.62/103,704.02
  6. Step 6: Final answer
    x = 80,569.38

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