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Finding the Fourth Proportional to 70,092.56, 105,098.43 and 47,932.78

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Solution

The fourth proportional to 70,092.56, 105,098.43 and 47,932.78 is: 71,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,092.56 : 105,098.43 = 47,932.78 : x
  2. Step 2: Convert to fraction form
    70,092.56/105,098.43 = 47,932.78/x
  3. Step 3: Cross multiply
    70,092.56x = 105,098.43 × 47,932.78
  4. Step 4: Simplify right side
    70,092.56x = 5,037,659,660.79
  5. Step 5: Solve for x
    x = 5,037,659,660.79/70,092.56
  6. Step 6: Final answer
    x = 71,871.54

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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.