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Finding the Fourth Proportional to 74,770.45, 103,157.70 and 42,501.81

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Solution

The fourth proportional to 74,770.45, 103,157.70 and 42,501.81 is: 58,637.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,770.45 : 103,157.70 = 42,501.81 : x
  2. Step 2: Convert to fraction form
    74,770.45/103,157.70 = 42,501.81/x
  3. Step 3: Cross multiply
    74,770.45x = 103,157.70 × 42,501.81
  4. Step 4: Simplify right side
    74,770.45x = 4,384,388,965.44
  5. Step 5: Solve for x
    x = 4,384,388,965.44/74,770.45
  6. Step 6: Final answer
    x = 58,637.99

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