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Finding the Fourth Proportional to 383,622.05, 575,411.88 and 117,382.61

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Solution

The fourth proportional to 383,622.05, 575,411.88 and 117,382.61 is: 176,067.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,622.05 : 575,411.88 = 117,382.61 : x
  2. Step 2: Convert to fraction form
    383,622.05/575,411.88 = 117,382.61/x
  3. Step 3: Cross multiply
    383,622.05x = 575,411.88 × 117,382.61
  4. Step 4: Simplify right side
    383,622.05x = 67,543,348,299.41
  5. Step 5: Solve for x
    x = 67,543,348,299.41/383,622.05
  6. Step 6: Final answer
    x = 176,067.43

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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.