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Finding the Fourth Proportional to 114,135.98, 171,233.15 and 66,790.94

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Solution

The fourth proportional to 114,135.98, 171,233.15 and 66,790.94 is: 100,203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,135.98 : 171,233.15 = 66,790.94 : x
  2. Step 2: Convert to fraction form
    114,135.98/171,233.15 = 66,790.94/x
  3. Step 3: Cross multiply
    114,135.98x = 171,233.15 × 66,790.94
  4. Step 4: Simplify right side
    114,135.98x = 11,436,821,857.54
  5. Step 5: Solve for x
    x = 11,436,821,857.54/114,135.98
  6. Step 6: Final answer
    x = 100,203.48

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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.