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Finding the Fourth Proportional to 387,957.65, 581,991.08 and 135,201.81

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Solution

The fourth proportional to 387,957.65, 581,991.08 and 135,201.81 is: 202,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,957.65 : 581,991.08 = 135,201.81 : x
  2. Step 2: Convert to fraction form
    387,957.65/581,991.08 = 135,201.81/x
  3. Step 3: Cross multiply
    387,957.65x = 581,991.08 × 135,201.81
  4. Step 4: Simplify right side
    387,957.65x = 78,686,245,652.61
  5. Step 5: Solve for x
    x = 78,686,245,652.61/387,957.65
  6. Step 6: Final answer
    x = 202,821.74

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