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Finding the Fourth Proportional to 112,742.82, 168,884.60 and 53,398.58

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Solution

The fourth proportional to 112,742.82, 168,884.60 and 53,398.58 is: 79,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,742.82 : 168,884.60 = 53,398.58 : x
  2. Step 2: Convert to fraction form
    112,742.82/168,884.60 = 53,398.58/x
  3. Step 3: Cross multiply
    112,742.82x = 168,884.60 × 53,398.58
  4. Step 4: Simplify right side
    112,742.82x = 9,018,196,712.45
  5. Step 5: Solve for x
    x = 9,018,196,712.45/112,742.82
  6. Step 6: Final answer
    x = 79,989.10

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