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Finding the Fourth Proportional to 206,667.70, 309,928.65 and 73,552.30

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Solution

The fourth proportional to 206,667.70, 309,928.65 and 73,552.30 is: 110,302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,667.70 : 309,928.65 = 73,552.30 : x
  2. Step 2: Convert to fraction form
    206,667.70/309,928.65 = 73,552.30/x
  3. Step 3: Cross multiply
    206,667.70x = 309,928.65 × 73,552.30
  4. Step 4: Simplify right side
    206,667.70x = 22,795,965,043.40
  5. Step 5: Solve for x
    x = 22,795,965,043.40/206,667.70
  6. Step 6: Final answer
    x = 110,302.51

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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.