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Finding the Fourth Proportional to 172,116.63, 258,135.93 and 65,462.40

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Solution

The fourth proportional to 172,116.63, 258,135.93 and 65,462.40 is: 98,178.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,116.63 : 258,135.93 = 65,462.40 : x
  2. Step 2: Convert to fraction form
    172,116.63/258,135.93 = 65,462.40/x
  3. Step 3: Cross multiply
    172,116.63x = 258,135.93 × 65,462.40
  4. Step 4: Simplify right side
    172,116.63x = 16,898,197,504.03
  5. Step 5: Solve for x
    x = 16,898,197,504.03/172,116.63
  6. Step 6: Final answer
    x = 98,178.76

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