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Finding the Fourth Proportional to 159,744.72, 220,458.60 and 92,676.72

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Solution

The fourth proportional to 159,744.72, 220,458.60 and 92,676.72 is: 127,900.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,744.72 : 220,458.60 = 92,676.72 : x
  2. Step 2: Convert to fraction form
    159,744.72/220,458.60 = 92,676.72/x
  3. Step 3: Cross multiply
    159,744.72x = 220,458.60 × 92,676.72
  4. Step 4: Simplify right side
    159,744.72x = 20,431,379,943.79
  5. Step 5: Solve for x
    x = 20,431,379,943.79/159,744.72
  6. Step 6: Final answer
    x = 127,900.19

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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.