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Finding the Fourth Proportional to 112,790.36, 155,640.35 and 65,034.48

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Solution

The fourth proportional to 112,790.36, 155,640.35 and 65,034.48 is: 89,741.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,790.36 : 155,640.35 = 65,034.48 : x
  2. Step 2: Convert to fraction form
    112,790.36/155,640.35 = 65,034.48/x
  3. Step 3: Cross multiply
    112,790.36x = 155,640.35 × 65,034.48
  4. Step 4: Simplify right side
    112,790.36x = 10,121,989,731.63
  5. Step 5: Solve for x
    x = 10,121,989,731.63/112,790.36
  6. Step 6: Final answer
    x = 89,741.62

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