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Finding the Fourth Proportional to 206,237.52, 309,351.96 and 65,996.28

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Solution

The fourth proportional to 206,237.52, 309,351.96 and 65,996.28 is: 98,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,237.52 : 309,351.96 = 65,996.28 : x
  2. Step 2: Convert to fraction form
    206,237.52/309,351.96 = 65,996.28/x
  3. Step 3: Cross multiply
    206,237.52x = 309,351.96 × 65,996.28
  4. Step 4: Simplify right side
    206,237.52x = 20,416,078,570.71
  5. Step 5: Solve for x
    x = 20,416,078,570.71/206,237.52
  6. Step 6: Final answer
    x = 98,993.04

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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.