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Finding the Fourth Proportional to 169,590.61, 254,388.34 and 80,853.49

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Solution

The fourth proportional to 169,590.61, 254,388.34 and 80,853.49 is: 121,281.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,590.61 : 254,388.34 = 80,853.49 : x
  2. Step 2: Convert to fraction form
    169,590.61/254,388.34 = 80,853.49/x
  3. Step 3: Cross multiply
    169,590.61x = 254,388.34 × 80,853.49
  4. Step 4: Simplify right side
    169,590.61x = 20,568,183,832.36
  5. Step 5: Solve for x
    x = 20,568,183,832.36/169,590.61
  6. Step 6: Final answer
    x = 121,281.39

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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.