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Finding the Fourth Proportional to 449,842.28, 674,763.78 and 117,418.28

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Solution

The fourth proportional to 449,842.28, 674,763.78 and 117,418.28 is: 176,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,842.28 : 674,763.78 = 117,418.28 : x
  2. Step 2: Convert to fraction form
    449,842.28/674,763.78 = 117,418.28/x
  3. Step 3: Cross multiply
    449,842.28x = 674,763.78 × 117,418.28
  4. Step 4: Simplify right side
    449,842.28x = 79,229,602,453.90
  5. Step 5: Solve for x
    x = 79,229,602,453.90/449,842.28
  6. Step 6: Final answer
    x = 176,127.51

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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.