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Finding the Fourth Proportional to 382,188.38, 573,370.92 and 112,320.54

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Solution

The fourth proportional to 382,188.38, 573,370.92 and 112,320.54 is: 168,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,188.38 : 573,370.92 = 112,320.54 : x
  2. Step 2: Convert to fraction form
    382,188.38/573,370.92 = 112,320.54/x
  3. Step 3: Cross multiply
    382,188.38x = 573,370.92 × 112,320.54
  4. Step 4: Simplify right side
    382,188.38x = 64,401,331,354.70
  5. Step 5: Solve for x
    x = 64,401,331,354.70/382,188.38
  6. Step 6: Final answer
    x = 168,506.78

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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.