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Finding the Fourth Proportional to 478,976.29, 718,481.41 and 119,149.02

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Solution

The fourth proportional to 478,976.29, 718,481.41 and 119,149.02 is: 178,727.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,976.29 : 718,481.41 = 119,149.02 : x
  2. Step 2: Convert to fraction form
    478,976.29/718,481.41 = 119,149.02/x
  3. Step 3: Cross multiply
    478,976.29x = 718,481.41 × 119,149.02
  4. Step 4: Simplify right side
    478,976.29x = 85,606,351,701.57
  5. Step 5: Solve for x
    x = 85,606,351,701.57/478,976.29
  6. Step 6: Final answer
    x = 178,727.74

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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.