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Finding the Fourth Proportional to 78,248.48, 117,490.08 and 75,526.88

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Solution

The fourth proportional to 78,248.48, 117,490.08 and 75,526.88 is: 113,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,248.48 : 117,490.08 = 75,526.88 : x
  2. Step 2: Convert to fraction form
    78,248.48/117,490.08 = 75,526.88/x
  3. Step 3: Cross multiply
    78,248.48x = 117,490.08 × 75,526.88
  4. Step 4: Simplify right side
    78,248.48x = 8,873,659,173.35
  5. Step 5: Solve for x
    x = 8,873,659,173.35/78,248.48
  6. Step 6: Final answer
    x = 113,403.60

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