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Finding the Fourth Proportional to 86,540.16, 129,697.12 and 44,384.64

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Solution

The fourth proportional to 86,540.16, 129,697.12 and 44,384.64 is: 66,518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,540.16 : 129,697.12 = 44,384.64 : x
  2. Step 2: Convert to fraction form
    86,540.16/129,697.12 = 44,384.64/x
  3. Step 3: Cross multiply
    86,540.16x = 129,697.12 × 44,384.64
  4. Step 4: Simplify right side
    86,540.16x = 5,756,559,980.24
  5. Step 5: Solve for x
    x = 5,756,559,980.24/86,540.16
  6. Step 6: Final answer
    x = 66,518.94

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