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Finding the Fourth Proportional to 105,645.96, 145,792.57 and 57,898.28

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Solution

The fourth proportional to 105,645.96, 145,792.57 and 57,898.28 is: 79,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,645.96 : 145,792.57 = 57,898.28 : x
  2. Step 2: Convert to fraction form
    105,645.96/145,792.57 = 57,898.28/x
  3. Step 3: Cross multiply
    105,645.96x = 145,792.57 × 57,898.28
  4. Step 4: Simplify right side
    105,645.96x = 8,441,139,039.78
  5. Step 5: Solve for x
    x = 8,441,139,039.78/105,645.96
  6. Step 6: Final answer
    x = 79,900.25

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