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Finding the Fourth Proportional to 66,251.88, 99,346.56 and 19,495.44

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Solution

The fourth proportional to 66,251.88, 99,346.56 and 19,495.44 is: 29,233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,251.88 : 99,346.56 = 19,495.44 : x
  2. Step 2: Convert to fraction form
    66,251.88/99,346.56 = 19,495.44/x
  3. Step 3: Cross multiply
    66,251.88x = 99,346.56 × 19,495.44
  4. Step 4: Simplify right side
    66,251.88x = 1,936,804,899.69
  5. Step 5: Solve for x
    x = 1,936,804,899.69/66,251.88
  6. Step 6: Final answer
    x = 29,233.96

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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.