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Finding the Fourth Proportional to 104,813.85, 157,187.68 and 33,720.65

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Solution

The fourth proportional to 104,813.85, 157,187.68 and 33,720.65 is: 50,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,813.85 : 157,187.68 = 33,720.65 : x
  2. Step 2: Convert to fraction form
    104,813.85/157,187.68 = 33,720.65/x
  3. Step 3: Cross multiply
    104,813.85x = 157,187.68 × 33,720.65
  4. Step 4: Simplify right side
    104,813.85x = 5,300,471,134.56
  5. Step 5: Solve for x
    x = 5,300,471,134.56/104,813.85
  6. Step 6: Final answer
    x = 50,570.33

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1.5x scale

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.