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Finding the Fourth Proportional to 449,493.12, 674,265.58 and 169,012.80

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Solution

The fourth proportional to 449,493.12, 674,265.58 and 169,012.80 is: 253,528.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,493.12 : 674,265.58 = 169,012.80 : x
  2. Step 2: Convert to fraction form
    449,493.12/674,265.58 = 169,012.80/x
  3. Step 3: Cross multiply
    449,493.12x = 674,265.58 × 169,012.80
  4. Step 4: Simplify right side
    449,493.12x = 113,959,513,619.42
  5. Step 5: Solve for x
    x = 113,959,513,619.42/449,493.12
  6. Step 6: Final answer
    x = 253,528.94

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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.