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Finding the Fourth Proportional to 83,689.44, 115,522.88 and 55,433.44

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Solution

The fourth proportional to 83,689.44, 115,522.88 and 55,433.44 is: 76,518.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,689.44 : 115,522.88 = 55,433.44 : x
  2. Step 2: Convert to fraction form
    83,689.44/115,522.88 = 55,433.44/x
  3. Step 3: Cross multiply
    83,689.44x = 115,522.88 × 55,433.44
  4. Step 4: Simplify right side
    83,689.44x = 6,403,830,637.11
  5. Step 5: Solve for x
    x = 6,403,830,637.11/83,689.44
  6. Step 6: Final answer
    x = 76,518.98

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