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Finding the Fourth Proportional to 172,613.03, 258,917.11 and 47,954.03

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Solution

The fourth proportional to 172,613.03, 258,917.11 and 47,954.03 is: 71,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,613.03 : 258,917.11 = 47,954.03 : x
  2. Step 2: Convert to fraction form
    172,613.03/258,917.11 = 47,954.03/x
  3. Step 3: Cross multiply
    172,613.03x = 258,917.11 × 47,954.03
  4. Step 4: Simplify right side
    172,613.03x = 12,416,117,445.98
  5. Step 5: Solve for x
    x = 12,416,117,445.98/172,613.03
  6. Step 6: Final answer
    x = 71,930.36

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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.