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Finding the Fourth Proportional to 112,000.10, 168,000.15 and 74,675.30

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Solution

The fourth proportional to 112,000.10, 168,000.15 and 74,675.30 is: 112,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,000.10 : 168,000.15 = 74,675.30 : x
  2. Step 2: Convert to fraction form
    112,000.10/168,000.15 = 74,675.30/x
  3. Step 3: Cross multiply
    112,000.10x = 168,000.15 × 74,675.30
  4. Step 4: Simplify right side
    112,000.10x = 12,545,461,601.30
  5. Step 5: Solve for x
    x = 12,545,461,601.30/112,000.10
  6. Step 6: Final answer
    x = 112,012.95

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