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Finding the Fourth Proportional to 382,278.92, 573,470.22 and 132,928.52

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Solution

The fourth proportional to 382,278.92, 573,470.22 and 132,928.52 is: 199,410.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,278.92 : 573,470.22 = 132,928.52 : x
  2. Step 2: Convert to fraction form
    382,278.92/573,470.22 = 132,928.52/x
  3. Step 3: Cross multiply
    382,278.92x = 573,470.22 × 132,928.52
  4. Step 4: Simplify right side
    382,278.92x = 76,230,547,608.67
  5. Step 5: Solve for x
    x = 76,230,547,608.67/382,278.92
  6. Step 6: Final answer
    x = 199,410.81

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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.