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Finding the Fourth Proportional to 87,918.92, 121,328.22 and 47,632.76

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Solution

The fourth proportional to 87,918.92, 121,328.22 and 47,632.76 is: 65,733.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,918.92 : 121,328.22 = 47,632.76 : x
  2. Step 2: Convert to fraction form
    87,918.92/121,328.22 = 47,632.76/x
  3. Step 3: Cross multiply
    87,918.92x = 121,328.22 × 47,632.76
  4. Step 4: Simplify right side
    87,918.92x = 5,779,197,984.49
  5. Step 5: Solve for x
    x = 5,779,197,984.49/87,918.92
  6. Step 6: Final answer
    x = 65,733.27

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