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Finding the Fourth Proportional to 87,257.40, 130,904.70 and 49,835.40

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Solution

The fourth proportional to 87,257.40, 130,904.70 and 49,835.40 is: 74,763.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,257.40 : 130,904.70 = 49,835.40 : x
  2. Step 2: Convert to fraction form
    87,257.40/130,904.70 = 49,835.40/x
  3. Step 3: Cross multiply
    87,257.40x = 130,904.70 × 49,835.40
  4. Step 4: Simplify right side
    87,257.40x = 6,523,688,086.38
  5. Step 5: Solve for x
    x = 6,523,688,086.38/87,257.40
  6. Step 6: Final answer
    x = 74,763.72

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