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Finding the Fourth Proportional to 394,245.52, 591,155.22 and 124,322.74

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Solution

The fourth proportional to 394,245.52, 591,155.22 and 124,322.74 is: 186,416.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,245.52 : 591,155.22 = 124,322.74 : x
  2. Step 2: Convert to fraction form
    394,245.52/591,155.22 = 124,322.74/x
  3. Step 3: Cross multiply
    394,245.52x = 591,155.22 × 124,322.74
  4. Step 4: Simplify right side
    394,245.52x = 73,494,036,715.70
  5. Step 5: Solve for x
    x = 73,494,036,715.70/394,245.52
  6. Step 6: Final answer
    x = 186,416.92

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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.