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Finding the Fourth Proportional to 57,245.92, 85,851.39 and 39,590.05

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Solution

The fourth proportional to 57,245.92, 85,851.39 and 39,590.05 is: 59,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,245.92 : 85,851.39 = 39,590.05 : x
  2. Step 2: Convert to fraction form
    57,245.92/85,851.39 = 39,590.05/x
  3. Step 3: Cross multiply
    57,245.92x = 85,851.39 × 39,590.05
  4. Step 4: Simplify right side
    57,245.92x = 3,398,860,822.67
  5. Step 5: Solve for x
    x = 3,398,860,822.67/57,245.92
  6. Step 6: Final answer
    x = 59,372.98

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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.