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Finding the Fourth Proportional to 303,714.51, 455,646.96 and 90,481.47

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Solution

The fourth proportional to 303,714.51, 455,646.96 and 90,481.47 is: 135,744.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,714.51 : 455,646.96 = 90,481.47 : x
  2. Step 2: Convert to fraction form
    303,714.51/455,646.96 = 90,481.47/x
  3. Step 3: Cross multiply
    303,714.51x = 455,646.96 × 90,481.47
  4. Step 4: Simplify right side
    303,714.51x = 41,227,606,741.83
  5. Step 5: Solve for x
    x = 41,227,606,741.83/303,714.51
  6. Step 6: Final answer
    x = 135,744.61

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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.