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Finding the Fourth Proportional to 74,136.87, 102,310.29 and 40,602.87

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Solution

The fourth proportional to 74,136.87, 102,310.29 and 40,602.87 is: 56,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,136.87 : 102,310.29 = 40,602.87 : x
  2. Step 2: Convert to fraction form
    74,136.87/102,310.29 = 40,602.87/x
  3. Step 3: Cross multiply
    74,136.87x = 102,310.29 × 40,602.87
  4. Step 4: Simplify right side
    74,136.87x = 4,154,091,404.53
  5. Step 5: Solve for x
    x = 4,154,091,404.53/74,136.87
  6. Step 6: Final answer
    x = 56,032.73

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