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Finding the Fourth Proportional to 66,446.60, 99,674.70 and 22,104.20

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Solution

The fourth proportional to 66,446.60, 99,674.70 and 22,104.20 is: 33,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,446.60 : 99,674.70 = 22,104.20 : x
  2. Step 2: Convert to fraction form
    66,446.60/99,674.70 = 22,104.20/x
  3. Step 3: Cross multiply
    66,446.60x = 99,674.70 × 22,104.20
  4. Step 4: Simplify right side
    66,446.60x = 2,203,229,503.74
  5. Step 5: Solve for x
    x = 2,203,229,503.74/66,446.60
  6. Step 6: Final answer
    x = 33,157.90

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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.