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Finding the Fourth Proportional to 127,718.23, 176,251.16 and 71,129.60

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Solution

The fourth proportional to 127,718.23, 176,251.16 and 71,129.60 is: 98,158.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,718.23 : 176,251.16 = 71,129.60 : x
  2. Step 2: Convert to fraction form
    127,718.23/176,251.16 = 71,129.60/x
  3. Step 3: Cross multiply
    127,718.23x = 176,251.16 × 71,129.60
  4. Step 4: Simplify right side
    127,718.23x = 12,536,674,563.45
  5. Step 5: Solve for x
    x = 12,536,674,563.45/127,718.23
  6. Step 6: Final answer
    x = 98,158.85

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