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Finding the Fourth Proportional to 223,616.20, 335,813.10 and 118,640.20

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Solution

The fourth proportional to 223,616.20, 335,813.10 and 118,640.20 is: 178,166.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,616.20 : 335,813.10 = 118,640.20 : x
  2. Step 2: Convert to fraction form
    223,616.20/335,813.10 = 118,640.20/x
  3. Step 3: Cross multiply
    223,616.20x = 335,813.10 × 118,640.20
  4. Step 4: Simplify right side
    223,616.20x = 39,840,933,346.62
  5. Step 5: Solve for x
    x = 39,840,933,346.62/223,616.20
  6. Step 6: Final answer
    x = 178,166.58

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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.