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Finding the Fourth Proportional to 86,154.72, 129,183.48 and 33,503.91

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Solution

The fourth proportional to 86,154.72, 129,183.48 and 33,503.91 is: 50,236.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,154.72 : 129,183.48 = 33,503.91 : x
  2. Step 2: Convert to fraction form
    86,154.72/129,183.48 = 33,503.91/x
  3. Step 3: Cross multiply
    86,154.72x = 129,183.48 × 33,503.91
  4. Step 4: Simplify right side
    86,154.72x = 4,328,151,687.41
  5. Step 5: Solve for x
    x = 4,328,151,687.41/86,154.72
  6. Step 6: Final answer
    x = 50,236.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.