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Finding the Fourth Proportional to 172,436.92, 258,666.31 and 54,112.93

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Solution

The fourth proportional to 172,436.92, 258,666.31 and 54,112.93 is: 81,172.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,436.92 : 258,666.31 = 54,112.93 : x
  2. Step 2: Convert to fraction form
    172,436.92/258,666.31 = 54,112.93/x
  3. Step 3: Cross multiply
    172,436.92x = 258,666.31 × 54,112.93
  4. Step 4: Simplify right side
    172,436.92x = 13,997,191,926.39
  5. Step 5: Solve for x
    x = 13,997,191,926.39/172,436.92
  6. Step 6: Final answer
    x = 81,172.82

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