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Finding the Fourth Proportional to 103,313.68, 154,965.08 and 33,187.56

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Solution

The fourth proportional to 103,313.68, 154,965.08 and 33,187.56 is: 49,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,313.68 : 154,965.08 = 33,187.56 : x
  2. Step 2: Convert to fraction form
    103,313.68/154,965.08 = 33,187.56/x
  3. Step 3: Cross multiply
    103,313.68x = 154,965.08 × 33,187.56
  4. Step 4: Simplify right side
    103,313.68x = 5,142,912,890.40
  5. Step 5: Solve for x
    x = 5,142,912,890.40/103,313.68
  6. Step 6: Final answer
    x = 49,779.59

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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.