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Finding the Fourth Proportional to 143,950.98, 198,652.62 and 80,292.90

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Solution

The fourth proportional to 143,950.98, 198,652.62 and 80,292.90 is: 110,804.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,950.98 : 198,652.62 = 80,292.90 : x
  2. Step 2: Convert to fraction form
    143,950.98/198,652.62 = 80,292.90/x
  3. Step 3: Cross multiply
    143,950.98x = 198,652.62 × 80,292.90
  4. Step 4: Simplify right side
    143,950.98x = 15,950,394,952.40
  5. Step 5: Solve for x
    x = 15,950,394,952.40/143,950.98
  6. Step 6: Final answer
    x = 110,804.35

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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.