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Finding the Fourth Proportional to 69,234.56, 95,492.56 and 47,731.20

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Solution

The fourth proportional to 69,234.56, 95,492.56 and 47,731.20 is: 65,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,234.56 : 95,492.56 = 47,731.20 : x
  2. Step 2: Convert to fraction form
    69,234.56/95,492.56 = 47,731.20/x
  3. Step 3: Cross multiply
    69,234.56x = 95,492.56 × 47,731.20
  4. Step 4: Simplify right side
    69,234.56x = 4,557,974,479.87
  5. Step 5: Solve for x
    x = 4,557,974,479.87/69,234.56
  6. Step 6: Final answer
    x = 65,833.80

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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.