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Finding the Fourth Proportional to 394,187.68, 591,284.76 and 169,532.56

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Solution

The fourth proportional to 394,187.68, 591,284.76 and 169,532.56 is: 254,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,187.68 : 591,284.76 = 169,532.56 : x
  2. Step 2: Convert to fraction form
    394,187.68/591,284.76 = 169,532.56/x
  3. Step 3: Cross multiply
    394,187.68x = 591,284.76 × 169,532.56
  4. Step 4: Simplify right side
    394,187.68x = 100,242,019,051.79
  5. Step 5: Solve for x
    x = 100,242,019,051.79/394,187.68
  6. Step 6: Final answer
    x = 254,300.23

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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.