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Finding the Fourth Proportional to 135,063.72, 186,399.16 and 74,646.16

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Solution

The fourth proportional to 135,063.72, 186,399.16 and 74,646.16 is: 103,017.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,063.72 : 186,399.16 = 74,646.16 : x
  2. Step 2: Convert to fraction form
    135,063.72/186,399.16 = 74,646.16/x
  3. Step 3: Cross multiply
    135,063.72x = 186,399.16 × 74,646.16
  4. Step 4: Simplify right side
    135,063.72x = 13,913,980,868.61
  5. Step 5: Solve for x
    x = 13,913,980,868.61/135,063.72
  6. Step 6: Final answer
    x = 103,017.90

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