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Finding the Fourth Proportional to 137,732.20, 206,598.30 and 118,049.20

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Solution

The fourth proportional to 137,732.20, 206,598.30 and 118,049.20 is: 177,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,732.20 : 206,598.30 = 118,049.20 : x
  2. Step 2: Convert to fraction form
    137,732.20/206,598.30 = 118,049.20/x
  3. Step 3: Cross multiply
    137,732.20x = 206,598.30 × 118,049.20
  4. Step 4: Simplify right side
    137,732.20x = 24,388,764,036.36
  5. Step 5: Solve for x
    x = 24,388,764,036.36/137,732.20
  6. Step 6: Final answer
    x = 177,073.80

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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.