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Finding the Fourth Proportional to 55,223.64, 82,859.84 and 42,851.16

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Solution

The fourth proportional to 55,223.64, 82,859.84 and 42,851.16 is: 64,295.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,223.64 : 82,859.84 = 42,851.16 : x
  2. Step 2: Convert to fraction form
    55,223.64/82,859.84 = 42,851.16/x
  3. Step 3: Cross multiply
    55,223.64x = 82,859.84 × 42,851.16
  4. Step 4: Simplify right side
    55,223.64x = 3,550,640,261.41
  5. Step 5: Solve for x
    x = 3,550,640,261.41/55,223.64
  6. Step 6: Final answer
    x = 64,295.66

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