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Finding the Fourth Proportional to 172,295.76, 258,561.72 and 67,115.28

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Solution

The fourth proportional to 172,295.76, 258,561.72 and 67,115.28 is: 100,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,295.76 : 258,561.72 = 67,115.28 : x
  2. Step 2: Convert to fraction form
    172,295.76/258,561.72 = 67,115.28/x
  3. Step 3: Cross multiply
    172,295.76x = 258,561.72 × 67,115.28
  4. Step 4: Simplify right side
    172,295.76x = 17,353,442,235.08
  5. Step 5: Solve for x
    x = 17,353,442,235.08/172,295.76
  6. Step 6: Final answer
    x = 100,718.92

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