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Finding the Fourth Proportional to 82,700.34, 123,994.37 and 42,074

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Solution

The fourth proportional to 82,700.34, 123,994.37 and 42,074 is: 63,082.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,700.34 : 123,994.37 = 42,074 : x
  2. Step 2: Convert to fraction form
    82,700.34/123,994.37 = 42,074/x
  3. Step 3: Cross multiply
    82,700.34x = 123,994.37 × 42,074
  4. Step 4: Simplify right side
    82,700.34x = 5,216,938,913.01
  5. Step 5: Solve for x
    x = 5,216,938,913.01/82,700.34
  6. Step 6: Final answer
    x = 63,082.44

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