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Finding the Fourth Proportional to 122,705.10, 184,165.65 and 72,722.70

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Solution

The fourth proportional to 122,705.10, 184,165.65 and 72,722.70 is: 109,148.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,705.10 : 184,165.65 = 72,722.70 : x
  2. Step 2: Convert to fraction form
    122,705.10/184,165.65 = 72,722.70/x
  3. Step 3: Cross multiply
    122,705.10x = 184,165.65 × 72,722.70
  4. Step 4: Simplify right side
    122,705.10x = 13,393,023,315.26
  5. Step 5: Solve for x
    x = 13,393,023,315.26/122,705.10
  6. Step 6: Final answer
    x = 109,148.06

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