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Finding the Fourth Proportional to 276,850.52, 415,284.76 and 87,312.72

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Solution

The fourth proportional to 276,850.52, 415,284.76 and 87,312.72 is: 130,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,850.52 : 415,284.76 = 87,312.72 : x
  2. Step 2: Convert to fraction form
    276,850.52/415,284.76 = 87,312.72/x
  3. Step 3: Cross multiply
    276,850.52x = 415,284.76 × 87,312.72
  4. Step 4: Simplify right side
    276,850.52x = 36,259,641,970.15
  5. Step 5: Solve for x
    x = 36,259,641,970.15/276,850.52
  6. Step 6: Final answer
    x = 130,971.91

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