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Finding the Fourth Proportional to 99,645.48, 137,509.86 and 54,933.48

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Solution

The fourth proportional to 99,645.48, 137,509.86 and 54,933.48 is: 75,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645.48 : 137,509.86 = 54,933.48 : x
  2. Step 2: Convert to fraction form
    99,645.48/137,509.86 = 54,933.48/x
  3. Step 3: Cross multiply
    99,645.48x = 137,509.86 × 54,933.48
  4. Step 4: Simplify right side
    99,645.48x = 7,553,895,144.11
  5. Step 5: Solve for x
    x = 7,553,895,144.11/99,645.48
  6. Step 6: Final answer
    x = 75,807.70

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