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Finding the Fourth Proportional to 394,167.18, 591,254.01 and 169,512.06

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Solution

The fourth proportional to 394,167.18, 591,254.01 and 169,512.06 is: 254,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,167.18 : 591,254.01 = 169,512.06 : x
  2. Step 2: Convert to fraction form
    394,167.18/591,254.01 = 169,512.06/x
  3. Step 3: Cross multiply
    394,167.18x = 591,254.01 × 169,512.06
  4. Step 4: Simplify right side
    394,167.18x = 100,224,685,218.36
  5. Step 5: Solve for x
    x = 100,224,685,218.36/394,167.18
  6. Step 6: Final answer
    x = 254,269.48

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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.