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Finding the Fourth Proportional to 270,079.92, 372,705.30 and 149,226.30

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Solution

The fourth proportional to 270,079.92, 372,705.30 and 149,226.30 is: 205,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,079.92 : 372,705.30 = 149,226.30 : x
  2. Step 2: Convert to fraction form
    270,079.92/372,705.30 = 149,226.30/x
  3. Step 3: Cross multiply
    270,079.92x = 372,705.30 × 149,226.30
  4. Step 4: Simplify right side
    270,079.92x = 55,617,432,909.39
  5. Step 5: Solve for x
    x = 55,617,432,909.39/270,079.92
  6. Step 6: Final answer
    x = 205,929.54

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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.