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Finding the Fourth Proportional to 449,490.67, 674,109.57 and 125,205.04

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Solution

The fourth proportional to 449,490.67, 674,109.57 and 125,205.04 is: 187,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,490.67 : 674,109.57 = 125,205.04 : x
  2. Step 2: Convert to fraction form
    449,490.67/674,109.57 = 125,205.04/x
  3. Step 3: Cross multiply
    449,490.67x = 674,109.57 × 125,205.04
  4. Step 4: Simplify right side
    449,490.67x = 84,401,916,988.39
  5. Step 5: Solve for x
    x = 84,401,916,988.39/449,490.67
  6. Step 6: Final answer
    x = 187,772.35

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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.