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Finding the Fourth Proportional to 63,218.96, 87,234.72 and 34,922.96

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Solution

The fourth proportional to 63,218.96, 87,234.72 and 34,922.96 is: 48,189.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,218.96 : 87,234.72 = 34,922.96 : x
  2. Step 2: Convert to fraction form
    63,218.96/87,234.72 = 34,922.96/x
  3. Step 3: Cross multiply
    63,218.96x = 87,234.72 × 34,922.96
  4. Step 4: Simplify right side
    63,218.96x = 3,046,494,201.00
  5. Step 5: Solve for x
    x = 3,046,494,201.00/63,218.96
  6. Step 6: Final answer
    x = 48,189.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.