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Finding the Fourth Proportional to 208,780.40, 313,169.10 and 51,007.40

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Solution

The fourth proportional to 208,780.40, 313,169.10 and 51,007.40 is: 76,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,780.40 : 313,169.10 = 51,007.40 : x
  2. Step 2: Convert to fraction form
    208,780.40/313,169.10 = 51,007.40/x
  3. Step 3: Cross multiply
    208,780.40x = 313,169.10 × 51,007.40
  4. Step 4: Simplify right side
    208,780.40x = 15,973,941,551.34
  5. Step 5: Solve for x
    x = 15,973,941,551.34/208,780.40
  6. Step 6: Final answer
    x = 76,510.73

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