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Finding the Fourth Proportional to 143,691.33, 215,536.99 and 43,852.03

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Solution

The fourth proportional to 143,691.33, 215,536.99 and 43,852.03 is: 65,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,691.33 : 215,536.99 = 43,852.03 : x
  2. Step 2: Convert to fraction form
    143,691.33/215,536.99 = 43,852.03/x
  3. Step 3: Cross multiply
    143,691.33x = 215,536.99 × 43,852.03
  4. Step 4: Simplify right side
    143,691.33x = 9,451,734,551.59
  5. Step 5: Solve for x
    x = 9,451,734,551.59/143,691.33
  6. Step 6: Final answer
    x = 65,778.04

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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.