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Finding the Fourth Proportional to 299,433.40, 449,214.90 and 89,092.60

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Solution

The fourth proportional to 299,433.40, 449,214.90 and 89,092.60 is: 133,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,433.40 : 449,214.90 = 89,092.60 : x
  2. Step 2: Convert to fraction form
    299,433.40/449,214.90 = 89,092.60/x
  3. Step 3: Cross multiply
    299,433.40x = 449,214.90 × 89,092.60
  4. Step 4: Simplify right side
    299,433.40x = 40,021,723,399.74
  5. Step 5: Solve for x
    x = 40,021,723,399.74/299,433.40
  6. Step 6: Final answer
    x = 133,658.18

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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.