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Finding the Fourth Proportional to 69,679.76, 104,503.88 and 32,219.42

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Solution

The fourth proportional to 69,679.76, 104,503.88 and 32,219.42 is: 48,321.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,679.76 : 104,503.88 = 32,219.42 : x
  2. Step 2: Convert to fraction form
    69,679.76/104,503.88 = 32,219.42/x
  3. Step 3: Cross multiply
    69,679.76x = 104,503.88 × 32,219.42
  4. Step 4: Simplify right side
    69,679.76x = 3,367,054,401.35
  5. Step 5: Solve for x
    x = 3,367,054,401.35/69,679.76
  6. Step 6: Final answer
    x = 48,321.84

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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.