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Finding the Fourth Proportional to 60,234.64, 90,229.25 and 28,548.66

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Solution

The fourth proportional to 60,234.64, 90,229.25 and 28,548.66 is: 42,764.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,234.64 : 90,229.25 = 28,548.66 : x
  2. Step 2: Convert to fraction form
    60,234.64/90,229.25 = 28,548.66/x
  3. Step 3: Cross multiply
    60,234.64x = 90,229.25 × 28,548.66
  4. Step 4: Simplify right side
    60,234.64x = 2,575,923,586.42
  5. Step 5: Solve for x
    x = 2,575,923,586.42/60,234.64
  6. Step 6: Final answer
    x = 42,764.82

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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.