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Finding the Fourth Proportional to 168,255.34, 252,133.68 and 68,293.90

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Solution

The fourth proportional to 168,255.34, 252,133.68 and 68,293.90 is: 102,339.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,255.34 : 252,133.68 = 68,293.90 : x
  2. Step 2: Convert to fraction form
    168,255.34/252,133.68 = 68,293.90/x
  3. Step 3: Cross multiply
    168,255.34x = 252,133.68 × 68,293.90
  4. Step 4: Simplify right side
    168,255.34x = 17,219,192,328.55
  5. Step 5: Solve for x
    x = 17,219,192,328.55/168,255.34
  6. Step 6: Final answer
    x = 102,339.65

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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.