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Finding the Fourth Proportional to 206,005.52, 308,934.84 and 93,591.56

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Solution

The fourth proportional to 206,005.52, 308,934.84 and 93,591.56 is: 140,353.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,005.52 : 308,934.84 = 93,591.56 : x
  2. Step 2: Convert to fraction form
    206,005.52/308,934.84 = 93,591.56/x
  3. Step 3: Cross multiply
    206,005.52x = 308,934.84 × 93,591.56
  4. Step 4: Simplify right side
    206,005.52x = 28,913,693,613.95
  5. Step 5: Solve for x
    x = 28,913,693,613.95/206,005.52
  6. Step 6: Final answer
    x = 140,353.98

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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.