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Finding the Fourth Proportional to 78,111.98, 107,764.00 and 45,400.94

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Solution

The fourth proportional to 78,111.98, 107,764.00 and 45,400.94 is: 62,635.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,111.98 : 107,764.00 = 45,400.94 : x
  2. Step 2: Convert to fraction form
    78,111.98/107,764.00 = 45,400.94/x
  3. Step 3: Cross multiply
    78,111.98x = 107,764.00 × 45,400.94
  4. Step 4: Simplify right side
    78,111.98x = 4,892,587,054.07
  5. Step 5: Solve for x
    x = 4,892,587,054.07/78,111.98
  6. Step 6: Final answer
    x = 62,635.56

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