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Finding the Fourth Proportional to 172,382.10, 258,573.15 and 83,808.60

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Solution

The fourth proportional to 172,382.10, 258,573.15 and 83,808.60 is: 125,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,382.10 : 258,573.15 = 83,808.60 : x
  2. Step 2: Convert to fraction form
    172,382.10/258,573.15 = 83,808.60/x
  3. Step 3: Cross multiply
    172,382.10x = 258,573.15 × 83,808.60
  4. Step 4: Simplify right side
    172,382.10x = 21,670,653,699.09
  5. Step 5: Solve for x
    x = 21,670,653,699.09/172,382.10
  6. Step 6: Final answer
    x = 125,712.90

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