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Finding the Fourth Proportional to 228,335.06, 342,128.57 and 121,605.70

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Solution

The fourth proportional to 228,335.06, 342,128.57 and 121,605.70 is: 182,209.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,335.06 : 342,128.57 = 121,605.70 : x
  2. Step 2: Convert to fraction form
    228,335.06/342,128.57 = 121,605.70/x
  3. Step 3: Cross multiply
    228,335.06x = 342,128.57 × 121,605.70
  4. Step 4: Simplify right side
    228,335.06x = 41,604,783,693.54
  5. Step 5: Solve for x
    x = 41,604,783,693.54/228,335.06
  6. Step 6: Final answer
    x = 182,209.36

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