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Finding the Fourth Proportional to 449,661.60, 674,233.20 and 169,207.20

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Solution

The fourth proportional to 449,661.60, 674,233.20 and 169,207.20 is: 253,713.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,661.60 : 674,233.20 = 169,207.20 : x
  2. Step 2: Convert to fraction form
    449,661.60/674,233.20 = 169,207.20/x
  3. Step 3: Cross multiply
    449,661.60x = 674,233.20 × 169,207.20
  4. Step 4: Simplify right side
    449,661.60x = 114,085,111,919.04
  5. Step 5: Solve for x
    x = 114,085,111,919.04/449,661.60
  6. Step 6: Final answer
    x = 253,713.26

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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.