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Finding the Fourth Proportional to 137,760.30, 206,251.65 and 137,760.30

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Solution

The fourth proportional to 137,760.30, 206,251.65 and 137,760.30 is: 206,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,760.30 : 206,251.65 = 137,760.30 : x
  2. Step 2: Convert to fraction form
    137,760.30/206,251.65 = 137,760.30/x
  3. Step 3: Cross multiply
    137,760.30x = 206,251.65 × 137,760.30
  4. Step 4: Simplify right side
    137,760.30x = 28,413,289,179.50
  5. Step 5: Solve for x
    x = 28,413,289,179.50/137,760.30
  6. Step 6: Final answer
    x = 206,251.65

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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.