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Finding the Fourth Proportional to 509,526.39, 764,288.69 and 135,549.39

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Solution

The fourth proportional to 509,526.39, 764,288.69 and 135,549.39 is: 203,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,526.39 : 764,288.69 = 135,549.39 : x
  2. Step 2: Convert to fraction form
    509,526.39/764,288.69 = 135,549.39/x
  3. Step 3: Cross multiply
    509,526.39x = 764,288.69 × 135,549.39
  4. Step 4: Simplify right side
    509,526.39x = 103,598,865,035.65
  5. Step 5: Solve for x
    x = 103,598,865,035.65/509,526.39
  6. Step 6: Final answer
    x = 203,323.85

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