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Finding the Fourth Proportional to 153,751.33, 212,177.15 and 85,766.54

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Solution

The fourth proportional to 153,751.33, 212,177.15 and 85,766.54 is: 118,357.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,751.33 : 212,177.15 = 85,766.54 : x
  2. Step 2: Convert to fraction form
    153,751.33/212,177.15 = 85,766.54/x
  3. Step 3: Cross multiply
    153,751.33x = 212,177.15 × 85,766.54
  4. Step 4: Simplify right side
    153,751.33x = 18,197,698,532.84
  5. Step 5: Solve for x
    x = 18,197,698,532.84/153,751.33
  6. Step 6: Final answer
    x = 118,357.99

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