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Finding the Fourth Proportional to 271,060.15, 406,610.21 and 71,379.16

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Solution

The fourth proportional to 271,060.15, 406,610.21 and 71,379.16 is: 107,074.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,060.15 : 406,610.21 = 71,379.16 : x
  2. Step 2: Convert to fraction form
    271,060.15/406,610.21 = 71,379.16/x
  3. Step 3: Cross multiply
    271,060.15x = 406,610.21 × 71,379.16
  4. Step 4: Simplify right side
    271,060.15x = 29,023,495,237.22
  5. Step 5: Solve for x
    x = 29,023,495,237.22/271,060.15
  6. Step 6: Final answer
    x = 107,074.00

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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.