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Finding the Fourth Proportional to 87,603.75, 131,488.65 and 54,222.84

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Solution

The fourth proportional to 87,603.75, 131,488.65 and 54,222.84 is: 81,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,603.75 : 131,488.65 = 54,222.84 : x
  2. Step 2: Convert to fraction form
    87,603.75/131,488.65 = 54,222.84/x
  3. Step 3: Cross multiply
    87,603.75x = 131,488.65 × 54,222.84
  4. Step 4: Simplify right side
    87,603.75x = 7,129,688,030.77
  5. Step 5: Solve for x
    x = 7,129,688,030.77/87,603.75
  6. Step 6: Final answer
    x = 81,385.65

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