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Finding the Fourth Proportional to 77,246.71, 106,545.39 and 70,893.78

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Solution

The fourth proportional to 77,246.71, 106,545.39 and 70,893.78 is: 97,782.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,246.71 : 106,545.39 = 70,893.78 : x
  2. Step 2: Convert to fraction form
    77,246.71/106,545.39 = 70,893.78/x
  3. Step 3: Cross multiply
    77,246.71x = 106,545.39 × 70,893.78
  4. Step 4: Simplify right side
    77,246.71x = 7,553,404,773.28
  5. Step 5: Solve for x
    x = 7,553,404,773.28/77,246.71
  6. Step 6: Final answer
    x = 97,782.87

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