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Finding the Fourth Proportional to 383,384.43, 575,180.17 and 117,137.68

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Solution

The fourth proportional to 383,384.43, 575,180.17 and 117,137.68 is: 175,738.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,384.43 : 575,180.17 = 117,137.68 : x
  2. Step 2: Convert to fraction form
    383,384.43/575,180.17 = 117,137.68/x
  3. Step 3: Cross multiply
    383,384.43x = 575,180.17 × 117,137.68
  4. Step 4: Simplify right side
    383,384.43x = 67,375,270,695.81
  5. Step 5: Solve for x
    x = 67,375,270,695.81/383,384.43
  6. Step 6: Final answer
    x = 175,738.15

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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.