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Finding the Fourth Proportional to 168,424.72, 252,676.90 and 54,572.34

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Solution

The fourth proportional to 168,424.72, 252,676.90 and 54,572.34 is: 81,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,424.72 : 252,676.90 = 54,572.34 : x
  2. Step 2: Convert to fraction form
    168,424.72/252,676.90 = 54,572.34/x
  3. Step 3: Cross multiply
    168,424.72x = 252,676.90 × 54,572.34
  4. Step 4: Simplify right side
    168,424.72x = 13,789,170,117.16
  5. Step 5: Solve for x
    x = 13,789,170,117.16/168,424.72
  6. Step 6: Final answer
    x = 81,871.41

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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.