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Finding the Fourth Proportional to 108,645.44, 149,949.36 and 63,349.97

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Solution

The fourth proportional to 108,645.44, 149,949.36 and 63,349.97 is: 87,433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,645.44 : 149,949.36 = 63,349.97 : x
  2. Step 2: Convert to fraction form
    108,645.44/149,949.36 = 63,349.97/x
  3. Step 3: Cross multiply
    108,645.44x = 149,949.36 × 63,349.97
  4. Step 4: Simplify right side
    108,645.44x = 9,499,286,707.77
  5. Step 5: Solve for x
    x = 9,499,286,707.77/108,645.44
  6. Step 6: Final answer
    x = 87,433.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.