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Finding the Fourth Proportional to 78,552.32, 117,758.22 and 28,597.22

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Solution

The fourth proportional to 78,552.32, 117,758.22 and 28,597.22 is: 42,870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,552.32 : 117,758.22 = 28,597.22 : x
  2. Step 2: Convert to fraction form
    78,552.32/117,758.22 = 28,597.22/x
  3. Step 3: Cross multiply
    78,552.32x = 117,758.22 × 28,597.22
  4. Step 4: Simplify right side
    78,552.32x = 3,367,557,724.15
  5. Step 5: Solve for x
    x = 3,367,557,724.15/78,552.32
  6. Step 6: Final answer
    x = 42,870.25

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