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Finding the Fourth Proportional to 168,047.64, 252,176.54 and 68,207.82

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Solution

The fourth proportional to 168,047.64, 252,176.54 and 68,207.82 is: 102,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,047.64 : 252,176.54 = 68,207.82 : x
  2. Step 2: Convert to fraction form
    168,047.64/252,176.54 = 68,207.82/x
  3. Step 3: Cross multiply
    168,047.64x = 252,176.54 × 68,207.82
  4. Step 4: Simplify right side
    168,047.64x = 17,200,412,048.54
  5. Step 5: Solve for x
    x = 17,200,412,048.54/168,047.64
  6. Step 6: Final answer
    x = 102,354.38

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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.