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Finding the Fourth Proportional to 103,796.54, 143,249.81 and 63,536.91

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Solution

The fourth proportional to 103,796.54, 143,249.81 and 63,536.91 is: 87,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,796.54 : 143,249.81 = 63,536.91 : x
  2. Step 2: Convert to fraction form
    103,796.54/143,249.81 = 63,536.91/x
  3. Step 3: Cross multiply
    103,796.54x = 143,249.81 × 63,536.91
  4. Step 4: Simplify right side
    103,796.54x = 9,101,650,772.49
  5. Step 5: Solve for x
    x = 9,101,650,772.49/103,796.54
  6. Step 6: Final answer
    x = 87,687.42

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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.