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Finding the Fourth Proportional to 127,724.80, 191,587.20 and 65,516.80

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Solution

The fourth proportional to 127,724.80, 191,587.20 and 65,516.80 is: 98,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,724.80 : 191,587.20 = 65,516.80 : x
  2. Step 2: Convert to fraction form
    127,724.80/191,587.20 = 65,516.80/x
  3. Step 3: Cross multiply
    127,724.80x = 191,587.20 × 65,516.80
  4. Step 4: Simplify right side
    127,724.80x = 12,552,180,264.96
  5. Step 5: Solve for x
    x = 12,552,180,264.96/127,724.80
  6. Step 6: Final answer
    x = 98,275.20

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