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Finding the Fourth Proportional to 99,579.90, 148,932.45 and 75,960.30

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Solution

The fourth proportional to 99,579.90, 148,932.45 and 75,960.30 is: 113,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,579.90 : 148,932.45 = 75,960.30 : x
  2. Step 2: Convert to fraction form
    99,579.90/148,932.45 = 75,960.30/x
  3. Step 3: Cross multiply
    99,579.90x = 148,932.45 × 75,960.30
  4. Step 4: Simplify right side
    99,579.90x = 11,312,953,581.74
  5. Step 5: Solve for x
    x = 11,312,953,581.74/99,579.90
  6. Step 6: Final answer
    x = 113,606.80

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