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Finding the Fourth Proportional to 98,136.72, 135,446.40 and 57,848.16

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Solution

The fourth proportional to 98,136.72, 135,446.40 and 57,848.16 is: 79,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,136.72 : 135,446.40 = 57,848.16 : x
  2. Step 2: Convert to fraction form
    98,136.72/135,446.40 = 57,848.16/x
  3. Step 3: Cross multiply
    98,136.72x = 135,446.40 × 57,848.16
  4. Step 4: Simplify right side
    98,136.72x = 7,835,325,018.62
  5. Step 5: Solve for x
    x = 7,835,325,018.62/98,136.72
  6. Step 6: Final answer
    x = 79,840.91

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