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Finding the Fourth Proportional to 137,302.44, 205,565.40 and 87,258.48

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Solution

The fourth proportional to 137,302.44, 205,565.40 and 87,258.48 is: 130,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,302.44 : 205,565.40 = 87,258.48 : x
  2. Step 2: Convert to fraction form
    137,302.44/205,565.40 = 87,258.48/x
  3. Step 3: Cross multiply
    137,302.44x = 205,565.40 × 87,258.48
  4. Step 4: Simplify right side
    137,302.44x = 17,937,324,344.59
  5. Step 5: Solve for x
    x = 17,937,324,344.59/137,302.44
  6. Step 6: Final answer
    x = 130,640.97

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