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Finding the Fourth Proportional to 132,445.14, 198,472.26 and 78,353.88

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Solution

The fourth proportional to 132,445.14, 198,472.26 and 78,353.88 is: 117,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,445.14 : 198,472.26 = 78,353.88 : x
  2. Step 2: Convert to fraction form
    132,445.14/198,472.26 = 78,353.88/x
  3. Step 3: Cross multiply
    132,445.14x = 198,472.26 × 78,353.88
  4. Step 4: Simplify right side
    132,445.14x = 15,551,071,643.37
  5. Step 5: Solve for x
    x = 15,551,071,643.37/132,445.14
  6. Step 6: Final answer
    x = 117,415.19

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