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Finding the Fourth Proportional to 219,992.70, 303,594.24 and 143,560.70

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Solution

The fourth proportional to 219,992.70, 303,594.24 and 143,560.70 is: 198,116.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,992.70 : 303,594.24 = 143,560.70 : x
  2. Step 2: Convert to fraction form
    219,992.70/303,594.24 = 143,560.70/x
  3. Step 3: Cross multiply
    219,992.70x = 303,594.24 × 143,560.70
  4. Step 4: Simplify right side
    219,992.70x = 43,584,201,610.37
  5. Step 5: Solve for x
    x = 43,584,201,610.37/219,992.70
  6. Step 6: Final answer
    x = 198,116.58

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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.