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Finding the Fourth Proportional to 165,473.40, 248,037.28 and 81,116.76

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Solution

The fourth proportional to 165,473.40, 248,037.28 and 81,116.76 is: 121,590.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,473.40 : 248,037.28 = 81,116.76 : x
  2. Step 2: Convert to fraction form
    165,473.40/248,037.28 = 81,116.76/x
  3. Step 3: Cross multiply
    165,473.40x = 248,037.28 × 81,116.76
  4. Step 4: Simplify right side
    165,473.40x = 20,119,980,512.81
  5. Step 5: Solve for x
    x = 20,119,980,512.81/165,473.40
  6. Step 6: Final answer
    x = 121,590.42

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