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Finding the Fourth Proportional to 105,064.61, 144,986.30 and 57,317.95

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Solution

The fourth proportional to 105,064.61, 144,986.30 and 57,317.95 is: 79,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,064.61 : 144,986.30 = 57,317.95 : x
  2. Step 2: Convert to fraction form
    105,064.61/144,986.30 = 57,317.95/x
  3. Step 3: Cross multiply
    105,064.61x = 144,986.30 × 57,317.95
  4. Step 4: Simplify right side
    105,064.61x = 8,310,317,494.09
  5. Step 5: Solve for x
    x = 8,310,317,494.09/105,064.61
  6. Step 6: Final answer
    x = 79,097.21

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