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Finding the Fourth Proportional to 167,375.72, 230,977.78 and 90,894.28

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Solution

The fourth proportional to 167,375.72, 230,977.78 and 90,894.28 is: 125,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,375.72 : 230,977.78 = 90,894.28 : x
  2. Step 2: Convert to fraction form
    167,375.72/230,977.78 = 90,894.28/x
  3. Step 3: Cross multiply
    167,375.72x = 230,977.78 × 90,894.28
  4. Step 4: Simplify right side
    167,375.72x = 20,994,560,024.72
  5. Step 5: Solve for x
    x = 20,994,560,024.72/167,375.72
  6. Step 6: Final answer
    x = 125,433.72

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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.