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Finding the Fourth Proportional to 324,514.67, 486,818.13 and 99,893.82

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Solution

The fourth proportional to 324,514.67, 486,818.13 and 99,893.82 is: 149,854.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,514.67 : 486,818.13 = 99,893.82 : x
  2. Step 2: Convert to fraction form
    324,514.67/486,818.13 = 99,893.82/x
  3. Step 3: Cross multiply
    324,514.67x = 486,818.13 × 99,893.82
  4. Step 4: Simplify right side
    324,514.67x = 48,630,122,650.96
  5. Step 5: Solve for x
    x = 48,630,122,650.96/324,514.67
  6. Step 6: Final answer
    x = 149,854.93

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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.