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Finding the Fourth Proportional to 68,975.64, 103,482.54 and 27,451.80

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Solution

The fourth proportional to 68,975.64, 103,482.54 and 27,451.80 is: 41,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,975.64 : 103,482.54 = 27,451.80 : x
  2. Step 2: Convert to fraction form
    68,975.64/103,482.54 = 27,451.80/x
  3. Step 3: Cross multiply
    68,975.64x = 103,482.54 × 27,451.80
  4. Step 4: Simplify right side
    68,975.64x = 2,840,781,991.57
  5. Step 5: Solve for x
    x = 2,840,781,991.57/68,975.64
  6. Step 6: Final answer
    x = 41,185.29

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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.