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Finding the Fourth Proportional to 88,640.60, 133,058.10 and 55,398.20

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Solution

The fourth proportional to 88,640.60, 133,058.10 and 55,398.20 is: 83,158.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,640.60 : 133,058.10 = 55,398.20 : x
  2. Step 2: Convert to fraction form
    88,640.60/133,058.10 = 55,398.20/x
  3. Step 3: Cross multiply
    88,640.60x = 133,058.10 × 55,398.20
  4. Step 4: Simplify right side
    88,640.60x = 7,371,179,235.42
  5. Step 5: Solve for x
    x = 7,371,179,235.42/88,640.60
  6. Step 6: Final answer
    x = 83,158.05

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