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Finding the Fourth Proportional to 136,978.24, 205,465.14 and 52,756.88

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Solution

The fourth proportional to 136,978.24, 205,465.14 and 52,756.88 is: 79,134.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,978.24 : 205,465.14 = 52,756.88 : x
  2. Step 2: Convert to fraction form
    136,978.24/205,465.14 = 52,756.88/x
  3. Step 3: Cross multiply
    136,978.24x = 205,465.14 × 52,756.88
  4. Step 4: Simplify right side
    136,978.24x = 10,839,699,735.16
  5. Step 5: Solve for x
    x = 10,839,699,735.16/136,978.24
  6. Step 6: Final answer
    x = 79,134.46

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