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Finding the Fourth Proportional to 68,964.80, 103,498.40 and 27,441.60

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Solution

The fourth proportional to 68,964.80, 103,498.40 and 27,441.60 is: 41,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,964.80 : 103,498.40 = 27,441.60 : x
  2. Step 2: Convert to fraction form
    68,964.80/103,498.40 = 27,441.60/x
  3. Step 3: Cross multiply
    68,964.80x = 103,498.40 × 27,441.60
  4. Step 4: Simplify right side
    68,964.80x = 2,840,161,693.44
  5. Step 5: Solve for x
    x = 2,840,161,693.44/68,964.80
  6. Step 6: Final answer
    x = 41,182.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.