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Finding the Fourth Proportional to 71,317.44, 106,874.10 and 40,087.08

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Solution

The fourth proportional to 71,317.44, 106,874.10 and 40,087.08 is: 60,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,317.44 : 106,874.10 = 40,087.08 : x
  2. Step 2: Convert to fraction form
    71,317.44/106,874.10 = 40,087.08/x
  3. Step 3: Cross multiply
    71,317.44x = 106,874.10 × 40,087.08
  4. Step 4: Simplify right side
    71,317.44x = 4,284,270,596.63
  5. Step 5: Solve for x
    x = 4,284,270,596.63/71,317.44
  6. Step 6: Final answer
    x = 60,073.25

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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.