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Finding the Fourth Proportional to 321,514.83, 482,173.73 and 222,312.51

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Solution

The fourth proportional to 321,514.83, 482,173.73 and 222,312.51 is: 333,400.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,514.83 : 482,173.73 = 222,312.51 : x
  2. Step 2: Convert to fraction form
    321,514.83/482,173.73 = 222,312.51/x
  3. Step 3: Cross multiply
    321,514.83x = 482,173.73 × 222,312.51
  4. Step 4: Simplify right side
    321,514.83x = 107,193,248,649.93
  5. Step 5: Solve for x
    x = 107,193,248,649.93/321,514.83
  6. Step 6: Final answer
    x = 333,400.64

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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.