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Finding the Fourth Proportional to 99,423.44, 137,200.20 and 54,708.56

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Solution

The fourth proportional to 99,423.44, 137,200.20 and 54,708.56 is: 75,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,423.44 : 137,200.20 = 54,708.56 : x
  2. Step 2: Convert to fraction form
    99,423.44/137,200.20 = 54,708.56/x
  3. Step 3: Cross multiply
    99,423.44x = 137,200.20 × 54,708.56
  4. Step 4: Simplify right side
    99,423.44x = 7,506,025,373.71
  5. Step 5: Solve for x
    x = 7,506,025,373.71/99,423.44
  6. Step 6: Final answer
    x = 75,495.53

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