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Finding the Fourth Proportional to 99,910.76, 137,877.81 and 54,587.48

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Solution

The fourth proportional to 99,910.76, 137,877.81 and 54,587.48 is: 75,331.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,910.76 : 137,877.81 = 54,587.48 : x
  2. Step 2: Convert to fraction form
    99,910.76/137,877.81 = 54,587.48/x
  3. Step 3: Cross multiply
    99,910.76x = 137,877.81 × 54,587.48
  4. Step 4: Simplify right side
    99,910.76x = 7,526,402,195.82
  5. Step 5: Solve for x
    x = 7,526,402,195.82/99,910.76
  6. Step 6: Final answer
    x = 75,331.25

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