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Finding the Fourth Proportional to 449,918.80, 675,137.40 and 169,637.20

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Solution

The fourth proportional to 449,918.80, 675,137.40 and 169,637.20 is: 254,553.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,918.80 : 675,137.40 = 169,637.20 : x
  2. Step 2: Convert to fraction form
    449,918.80/675,137.40 = 169,637.20/x
  3. Step 3: Cross multiply
    449,918.80x = 675,137.40 × 169,637.20
  4. Step 4: Simplify right side
    449,918.80x = 114,528,418,151.28
  5. Step 5: Solve for x
    x = 114,528,418,151.28/449,918.80
  6. Step 6: Final answer
    x = 254,553.53

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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.