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Finding the Fourth Proportional to 169,488.43, 254,336.43 and 68,267.90

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Solution

The fourth proportional to 169,488.43, 254,336.43 and 68,267.90 is: 102,443.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,488.43 : 254,336.43 = 68,267.90 : x
  2. Step 2: Convert to fraction form
    169,488.43/254,336.43 = 68,267.90/x
  3. Step 3: Cross multiply
    169,488.43x = 254,336.43 × 68,267.90
  4. Step 4: Simplify right side
    169,488.43x = 17,363,014,861.44
  5. Step 5: Solve for x
    x = 17,363,014,861.44/169,488.43
  6. Step 6: Final answer
    x = 102,443.66

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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.