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Finding the Fourth Proportional to 354,816.70, 532,310.10 and 118,161.43

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Solution

The fourth proportional to 354,816.70, 532,310.10 and 118,161.43 is: 177,270.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,816.70 : 532,310.10 = 118,161.43 : x
  2. Step 2: Convert to fraction form
    354,816.70/532,310.10 = 118,161.43/x
  3. Step 3: Cross multiply
    354,816.70x = 532,310.10 × 118,161.43
  4. Step 4: Simplify right side
    354,816.70x = 62,898,522,619.44
  5. Step 5: Solve for x
    x = 62,898,522,619.44/354,816.70
  6. Step 6: Final answer
    x = 177,270.47

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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.