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Finding the Fourth Proportional to 303,714.01, 455,646.21 and 90,480.97

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Solution

The fourth proportional to 303,714.01, 455,646.21 and 90,480.97 is: 135,743.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,714.01 : 455,646.21 = 90,480.97 : x
  2. Step 2: Convert to fraction form
    303,714.01/455,646.21 = 90,480.97/x
  3. Step 3: Cross multiply
    303,714.01x = 455,646.21 × 90,480.97
  4. Step 4: Simplify right side
    303,714.01x = 41,227,311,057.62
  5. Step 5: Solve for x
    x = 41,227,311,057.62/303,714.01
  6. Step 6: Final answer
    x = 135,743.86

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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.