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Finding the Fourth Proportional to 270,181.72, 372,818.45 and 149,306.58

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Solution

The fourth proportional to 270,181.72, 372,818.45 and 149,306.58 is: 206,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,181.72 : 372,818.45 = 149,306.58 : x
  2. Step 2: Convert to fraction form
    270,181.72/372,818.45 = 149,306.58/x
  3. Step 3: Cross multiply
    270,181.72x = 372,818.45 × 149,306.58
  4. Step 4: Simplify right side
    270,181.72x = 55,664,248,103.67
  5. Step 5: Solve for x
    x = 55,664,248,103.67/270,181.72
  6. Step 6: Final answer
    x = 206,025.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.