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Finding the Fourth Proportional to 60,229.68, 90,336.84 and 15,859.86

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Solution

The fourth proportional to 60,229.68, 90,336.84 and 15,859.86 is: 23,787.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,229.68 : 90,336.84 = 15,859.86 : x
  2. Step 2: Convert to fraction form
    60,229.68/90,336.84 = 15,859.86/x
  3. Step 3: Cross multiply
    60,229.68x = 90,336.84 × 15,859.86
  4. Step 4: Simplify right side
    60,229.68x = 1,432,729,635.24
  5. Step 5: Solve for x
    x = 1,432,729,635.24/60,229.68
  6. Step 6: Final answer
    x = 23,787.77

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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.