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Finding the Fourth Proportional to 119,782.20, 179,640.90 and 35,542.20

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Solution

The fourth proportional to 119,782.20, 179,640.90 and 35,542.20 is: 53,303.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,782.20 : 179,640.90 = 35,542.20 : x
  2. Step 2: Convert to fraction form
    119,782.20/179,640.90 = 35,542.20/x
  3. Step 3: Cross multiply
    119,782.20x = 179,640.90 × 35,542.20
  4. Step 4: Simplify right side
    119,782.20x = 6,384,832,795.98
  5. Step 5: Solve for x
    x = 6,384,832,795.98/119,782.20
  6. Step 6: Final answer
    x = 53,303.69

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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.