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Finding the Fourth Proportional to 161,809.92, 242,714.67 and 43,481.26

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Solution

The fourth proportional to 161,809.92, 242,714.67 and 43,481.26 is: 65,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,809.92 : 242,714.67 = 43,481.26 : x
  2. Step 2: Convert to fraction form
    161,809.92/242,714.67 = 43,481.26/x
  3. Step 3: Cross multiply
    161,809.92x = 242,714.67 × 43,481.26
  4. Step 4: Simplify right side
    161,809.92x = 10,553,539,672.08
  5. Step 5: Solve for x
    x = 10,553,539,672.08/161,809.92
  6. Step 6: Final answer
    x = 65,221.83

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1.5x scale

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.