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Finding the Fourth Proportional to 103,878.91, 155,695.31 and 47,671.66

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Solution

The fourth proportional to 103,878.91, 155,695.31 and 47,671.66 is: 71,451.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,878.91 : 155,695.31 = 47,671.66 : x
  2. Step 2: Convert to fraction form
    103,878.91/155,695.31 = 47,671.66/x
  3. Step 3: Cross multiply
    103,878.91x = 155,695.31 × 47,671.66
  4. Step 4: Simplify right side
    103,878.91x = 7,422,253,881.91
  5. Step 5: Solve for x
    x = 7,422,253,881.91/103,878.91
  6. Step 6: Final answer
    x = 71,451.02

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