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Finding the Fourth Proportional to 105,325.47, 145,351.44 and 57,578.79

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Solution

The fourth proportional to 105,325.47, 145,351.44 and 57,578.79 is: 79,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,325.47 : 145,351.44 = 57,578.79 : x
  2. Step 2: Convert to fraction form
    105,325.47/145,351.44 = 57,578.79/x
  3. Step 3: Cross multiply
    105,325.47x = 145,351.44 × 57,578.79
  4. Step 4: Simplify right side
    105,325.47x = 8,369,160,039.96
  5. Step 5: Solve for x
    x = 8,369,160,039.96/105,325.47
  6. Step 6: Final answer
    x = 79,459.98

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