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Finding the Fourth Proportional to 252,205.43, 378,736.67 and 168,503.47

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Solution

The fourth proportional to 252,205.43, 378,736.67 and 168,503.47 is: 253,041.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,205.43 : 378,736.67 = 168,503.47 : x
  2. Step 2: Convert to fraction form
    252,205.43/378,736.67 = 168,503.47/x
  3. Step 3: Cross multiply
    252,205.43x = 378,736.67 × 168,503.47
  4. Step 4: Simplify right side
    252,205.43x = 63,818,440,375.04
  5. Step 5: Solve for x
    x = 63,818,440,375.04/252,205.43
  6. Step 6: Final answer
    x = 253,041.50

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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.