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Finding the Fourth Proportional to 86,374.68, 129,631.14 and 44,833.56

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Solution

The fourth proportional to 86,374.68, 129,631.14 and 44,833.56 is: 67,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,374.68 : 129,631.14 = 44,833.56 : x
  2. Step 2: Convert to fraction form
    86,374.68/129,631.14 = 44,833.56/x
  3. Step 3: Cross multiply
    86,374.68x = 129,631.14 × 44,833.56
  4. Step 4: Simplify right side
    86,374.68x = 5,811,825,493.06
  5. Step 5: Solve for x
    x = 5,811,825,493.06/86,374.68
  6. Step 6: Final answer
    x = 67,286.22

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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.