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Finding the Fourth Proportional to 79,725.80, 119,603.10 and 32,983.40

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Solution

The fourth proportional to 79,725.80, 119,603.10 and 32,983.40 is: 49,481.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,725.80 : 119,603.10 = 32,983.40 : x
  2. Step 2: Convert to fraction form
    79,725.80/119,603.10 = 32,983.40/x
  3. Step 3: Cross multiply
    79,725.80x = 119,603.10 × 32,983.40
  4. Step 4: Simplify right side
    79,725.80x = 3,944,916,888.54
  5. Step 5: Solve for x
    x = 3,944,916,888.54/79,725.80
  6. Step 6: Final answer
    x = 49,481.06

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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.