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Finding the Fourth Proportional to 168,263.82, 252,443.42 and 68,495.61

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Solution

The fourth proportional to 168,263.82, 252,443.42 and 68,495.61 is: 102,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,263.82 : 252,443.42 = 68,495.61 : x
  2. Step 2: Convert to fraction form
    168,263.82/252,443.42 = 68,495.61/x
  3. Step 3: Cross multiply
    168,263.82x = 252,443.42 × 68,495.61
  4. Step 4: Simplify right side
    168,263.82x = 17,291,265,700.91
  5. Step 5: Solve for x
    x = 17,291,265,700.91/168,263.82
  6. Step 6: Final answer
    x = 102,762.83

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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.