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Finding the Fourth Proportional to 206,116.24, 308,934.60 and 168,739.60

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Solution

The fourth proportional to 206,116.24, 308,934.60 and 168,739.60 is: 252,913.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,116.24 : 308,934.60 = 168,739.60 : x
  2. Step 2: Convert to fraction form
    206,116.24/308,934.60 = 168,739.60/x
  3. Step 3: Cross multiply
    206,116.24x = 308,934.60 × 168,739.60
  4. Step 4: Simplify right side
    206,116.24x = 52,129,500,830.16
  5. Step 5: Solve for x
    x = 52,129,500,830.16/206,116.24
  6. Step 6: Final answer
    x = 252,913.12

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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.