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Finding the Fourth Proportional to 66,489.44, 99,706.08 and 22,104.32

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Solution

The fourth proportional to 66,489.44, 99,706.08 and 22,104.32 is: 33,147.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,489.44 : 99,706.08 = 22,104.32 : x
  2. Step 2: Convert to fraction form
    66,489.44/99,706.08 = 22,104.32/x
  3. Step 3: Cross multiply
    66,489.44x = 99,706.08 × 22,104.32
  4. Step 4: Simplify right side
    66,489.44x = 2,203,935,098.27
  5. Step 5: Solve for x
    x = 2,203,935,098.27/66,489.44
  6. Step 6: Final answer
    x = 33,147.14

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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.