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Finding the Fourth Proportional to 137,727.80, 206,591.70 and 67,592.60

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Solution

The fourth proportional to 137,727.80, 206,591.70 and 67,592.60 is: 101,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,727.80 : 206,591.70 = 67,592.60 : x
  2. Step 2: Convert to fraction form
    137,727.80/206,591.70 = 67,592.60/x
  3. Step 3: Cross multiply
    137,727.80x = 206,591.70 × 67,592.60
  4. Step 4: Simplify right side
    137,727.80x = 13,964,070,141.42
  5. Step 5: Solve for x
    x = 13,964,070,141.42/137,727.80
  6. Step 6: Final answer
    x = 101,388.90

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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.