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Finding the Fourth Proportional to 78,075.99, 107,705.10 and 47,440.83

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Solution

The fourth proportional to 78,075.99, 107,705.10 and 47,440.83 is: 65,444.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,075.99 : 107,705.10 = 47,440.83 : x
  2. Step 2: Convert to fraction form
    78,075.99/107,705.10 = 47,440.83/x
  3. Step 3: Cross multiply
    78,075.99x = 107,705.10 × 47,440.83
  4. Step 4: Simplify right side
    78,075.99x = 5,109,619,339.23
  5. Step 5: Solve for x
    x = 5,109,619,339.23/78,075.99
  6. Step 6: Final answer
    x = 65,444.18

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