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Finding the Fourth Proportional to 100,907.60, 151,361.40 and 91,066.10

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Solution

The fourth proportional to 100,907.60, 151,361.40 and 91,066.10 is: 136,599.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,907.60 : 151,361.40 = 91,066.10 : x
  2. Step 2: Convert to fraction form
    100,907.60/151,361.40 = 91,066.10/x
  3. Step 3: Cross multiply
    100,907.60x = 151,361.40 × 91,066.10
  4. Step 4: Simplify right side
    100,907.60x = 13,783,892,388.54
  5. Step 5: Solve for x
    x = 13,783,892,388.54/100,907.60
  6. Step 6: Final answer
    x = 136,599.15

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