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Finding the Fourth Proportional to 122,533.53, 169,076.40 and 76,587.75

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Solution

The fourth proportional to 122,533.53, 169,076.40 and 76,587.75 is: 105,678.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,533.53 : 169,076.40 = 76,587.75 : x
  2. Step 2: Convert to fraction form
    122,533.53/169,076.40 = 76,587.75/x
  3. Step 3: Cross multiply
    122,533.53x = 169,076.40 × 76,587.75
  4. Step 4: Simplify right side
    122,533.53x = 12,949,181,054.10
  5. Step 5: Solve for x
    x = 12,949,181,054.10/122,533.53
  6. Step 6: Final answer
    x = 105,678.67

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