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Finding the Fourth Proportional to 48,836.40, 73,139.40 and 33,169.20

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Solution

The fourth proportional to 48,836.40, 73,139.40 and 33,169.20 is: 49,675.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,836.40 : 73,139.40 = 33,169.20 : x
  2. Step 2: Convert to fraction form
    48,836.40/73,139.40 = 33,169.20/x
  3. Step 3: Cross multiply
    48,836.40x = 73,139.40 × 33,169.20
  4. Step 4: Simplify right side
    48,836.40x = 2,425,975,386.48
  5. Step 5: Solve for x
    x = 2,425,975,386.48/48,836.40
  6. Step 6: Final answer
    x = 49,675.56

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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.