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Finding the Fourth Proportional to 128,960.69, 193,479.48 and 61,543.34

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Solution

The fourth proportional to 128,960.69, 193,479.48 and 61,543.34 is: 92,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,960.69 : 193,479.48 = 61,543.34 : x
  2. Step 2: Convert to fraction form
    128,960.69/193,479.48 = 61,543.34/x
  3. Step 3: Cross multiply
    128,960.69x = 193,479.48 × 61,543.34
  4. Step 4: Simplify right side
    128,960.69x = 11,907,373,904.36
  5. Step 5: Solve for x
    x = 11,907,373,904.36/128,960.69
  6. Step 6: Final answer
    x = 92,333.36

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