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Finding the Fourth Proportional to 78,502.60, 108,318.90 and 46,679.32

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Solution

The fourth proportional to 78,502.60, 108,318.90 and 46,679.32 is: 64,408.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,502.60 : 108,318.90 = 46,679.32 : x
  2. Step 2: Convert to fraction form
    78,502.60/108,318.90 = 46,679.32/x
  3. Step 3: Cross multiply
    78,502.60x = 108,318.90 × 46,679.32
  4. Step 4: Simplify right side
    78,502.60x = 5,056,252,595.15
  5. Step 5: Solve for x
    x = 5,056,252,595.15/78,502.60
  6. Step 6: Final answer
    x = 64,408.73

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