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Finding the Fourth Proportional to 143,670.48, 215,618.04 and 99,607.56

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Solution

The fourth proportional to 143,670.48, 215,618.04 and 99,607.56 is: 149,489.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,670.48 : 215,618.04 = 99,607.56 : x
  2. Step 2: Convert to fraction form
    143,670.48/215,618.04 = 99,607.56/x
  3. Step 3: Cross multiply
    143,670.48x = 215,618.04 × 99,607.56
  4. Step 4: Simplify right side
    143,670.48x = 21,477,186,856.38
  5. Step 5: Solve for x
    x = 21,477,186,856.38/143,670.48
  6. Step 6: Final answer
    x = 149,489.21

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