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Finding the Fourth Proportional to 84,799.80, 127,199.70 and 49,807.80

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Solution

The fourth proportional to 84,799.80, 127,199.70 and 49,807.80 is: 74,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,799.80 : 127,199.70 = 49,807.80 : x
  2. Step 2: Convert to fraction form
    84,799.80/127,199.70 = 49,807.80/x
  3. Step 3: Cross multiply
    84,799.80x = 127,199.70 × 49,807.80
  4. Step 4: Simplify right side
    84,799.80x = 6,335,537,217.66
  5. Step 5: Solve for x
    x = 6,335,537,217.66/84,799.80
  6. Step 6: Final answer
    x = 74,711.70

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