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Finding the Fourth Proportional to 78,894.66, 118,378.86 and 34,515.66

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Solution

The fourth proportional to 78,894.66, 118,378.86 and 34,515.66 is: 51,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894.66 : 118,378.86 = 34,515.66 : x
  2. Step 2: Convert to fraction form
    78,894.66/118,378.86 = 34,515.66/x
  3. Step 3: Cross multiply
    78,894.66x = 118,378.86 × 34,515.66
  4. Step 4: Simplify right side
    78,894.66x = 4,085,924,482.95
  5. Step 5: Solve for x
    x = 4,085,924,482.95/78,894.66
  6. Step 6: Final answer
    x = 51,789.62

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