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Finding the Fourth Proportional to 60,234.87, 90,356.74 and 15,861.31

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Solution

The fourth proportional to 60,234.87, 90,356.74 and 15,861.31 is: 23,793.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,234.87 : 90,356.74 = 15,861.31 : x
  2. Step 2: Convert to fraction form
    60,234.87/90,356.74 = 15,861.31/x
  3. Step 3: Cross multiply
    60,234.87x = 90,356.74 × 15,861.31
  4. Step 4: Simplify right side
    60,234.87x = 1,433,176,489.62
  5. Step 5: Solve for x
    x = 1,433,176,489.62/60,234.87
  6. Step 6: Final answer
    x = 23,793.14

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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.