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Finding the Fourth Proportional to 168,638.88, 252,935.22 and 56,316.72

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Solution

The fourth proportional to 168,638.88, 252,935.22 and 56,316.72 is: 84,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,638.88 : 252,935.22 = 56,316.72 : x
  2. Step 2: Convert to fraction form
    168,638.88/252,935.22 = 56,316.72/x
  3. Step 3: Cross multiply
    168,638.88x = 252,935.22 × 56,316.72
  4. Step 4: Simplify right side
    168,638.88x = 14,244,481,962.88
  5. Step 5: Solve for x
    x = 14,244,481,962.88/168,638.88
  6. Step 6: Final answer
    x = 84,467.37

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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.