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Finding the Fourth Proportional to 72,125.34, 108,093.74 and 52,201.92

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Solution

The fourth proportional to 72,125.34, 108,093.74 and 52,201.92 is: 78,234.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,125.34 : 108,093.74 = 52,201.92 : x
  2. Step 2: Convert to fraction form
    72,125.34/108,093.74 = 52,201.92/x
  3. Step 3: Cross multiply
    72,125.34x = 108,093.74 × 52,201.92
  4. Step 4: Simplify right side
    72,125.34x = 5,642,700,767.98
  5. Step 5: Solve for x
    x = 5,642,700,767.98/72,125.34
  6. Step 6: Final answer
    x = 78,234.65

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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.