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Finding the Fourth Proportional to 208,055.70, 312,083.55 and 74,999.70

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Solution

The fourth proportional to 208,055.70, 312,083.55 and 74,999.70 is: 112,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,055.70 : 312,083.55 = 74,999.70 : x
  2. Step 2: Convert to fraction form
    208,055.70/312,083.55 = 74,999.70/x
  3. Step 3: Cross multiply
    208,055.70x = 312,083.55 × 74,999.70
  4. Step 4: Simplify right side
    208,055.70x = 23,406,172,624.94
  5. Step 5: Solve for x
    x = 23,406,172,624.94/208,055.70
  6. Step 6: Final answer
    x = 112,499.55

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