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Finding the Fourth Proportional to 82,958.40, 124,437.60 and 49,780.80

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Solution

The fourth proportional to 82,958.40, 124,437.60 and 49,780.80 is: 74,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,958.40 : 124,437.60 = 49,780.80 : x
  2. Step 2: Convert to fraction form
    82,958.40/124,437.60 = 49,780.80/x
  3. Step 3: Cross multiply
    82,958.40x = 124,437.60 × 49,780.80
  4. Step 4: Simplify right side
    82,958.40x = 6,194,603,278.08
  5. Step 5: Solve for x
    x = 6,194,603,278.08/82,958.40
  6. Step 6: Final answer
    x = 74,671.20

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