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Finding the Fourth Proportional to 92,877.35, 128,168.57 and 54,639.36

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Solution

The fourth proportional to 92,877.35, 128,168.57 and 54,639.36 is: 75,401.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,877.35 : 128,168.57 = 54,639.36 : x
  2. Step 2: Convert to fraction form
    92,877.35/128,168.57 = 54,639.36/x
  3. Step 3: Cross multiply
    92,877.35x = 128,168.57 × 54,639.36
  4. Step 4: Simplify right side
    92,877.35x = 7,003,048,122.13
  5. Step 5: Solve for x
    x = 7,003,048,122.13/92,877.35
  6. Step 6: Final answer
    x = 75,401.04

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