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Finding the Fourth Proportional to 122,406.17, 168,920.64 and 71,453.93

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Solution

The fourth proportional to 122,406.17, 168,920.64 and 71,453.93 is: 98,606.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,406.17 : 168,920.64 = 71,453.93 : x
  2. Step 2: Convert to fraction form
    122,406.17/168,920.64 = 71,453.93/x
  3. Step 3: Cross multiply
    122,406.17x = 168,920.64 × 71,453.93
  4. Step 4: Simplify right side
    122,406.17x = 12,070,042,741.51
  5. Step 5: Solve for x
    x = 12,070,042,741.51/122,406.17
  6. Step 6: Final answer
    x = 98,606.49

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