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Finding the Fourth Proportional to 449,755.34, 674,632.40 and 117,331.34

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Solution

The fourth proportional to 449,755.34, 674,632.40 and 117,331.34 is: 175,996.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,755.34 : 674,632.40 = 117,331.34 : x
  2. Step 2: Convert to fraction form
    449,755.34/674,632.40 = 117,331.34/x
  3. Step 3: Cross multiply
    449,755.34x = 674,632.40 × 117,331.34
  4. Step 4: Simplify right side
    449,755.34x = 79,155,519,539.60
  5. Step 5: Solve for x
    x = 79,155,519,539.60/449,755.34
  6. Step 6: Final answer
    x = 175,996.84

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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.