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Finding the Fourth Proportional to 78,772.04, 108,706.32 and 42,961.94

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Solution

The fourth proportional to 78,772.04, 108,706.32 and 42,961.94 is: 59,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,772.04 : 108,706.32 = 42,961.94 : x
  2. Step 2: Convert to fraction form
    78,772.04/108,706.32 = 42,961.94/x
  3. Step 3: Cross multiply
    78,772.04x = 108,706.32 × 42,961.94
  4. Step 4: Simplify right side
    78,772.04x = 4,670,234,397.46
  5. Step 5: Solve for x
    x = 4,670,234,397.46/78,772.04
  6. Step 6: Final answer
    x = 59,287.97

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