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Finding the Fourth Proportional to 339,565.80, 509,219.10 and 102,829.80

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Solution

The fourth proportional to 339,565.80, 509,219.10 and 102,829.80 is: 154,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,565.80 : 509,219.10 = 102,829.80 : x
  2. Step 2: Convert to fraction form
    339,565.80/509,219.10 = 102,829.80/x
  3. Step 3: Cross multiply
    339,565.80x = 509,219.10 × 102,829.80
  4. Step 4: Simplify right side
    339,565.80x = 52,362,898,209.18
  5. Step 5: Solve for x
    x = 52,362,898,209.18/339,565.80
  6. Step 6: Final answer
    x = 154,205.45

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