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Finding the Fourth Proportional to 394,243.52, 591,152.22 and 124,320.74

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Solution

The fourth proportional to 394,243.52, 591,152.22 and 124,320.74 is: 186,413.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,243.52 : 591,152.22 = 124,320.74 : x
  2. Step 2: Convert to fraction form
    394,243.52/591,152.22 = 124,320.74/x
  3. Step 3: Cross multiply
    394,243.52x = 591,152.22 × 124,320.74
  4. Step 4: Simplify right side
    394,243.52x = 73,492,481,443.04
  5. Step 5: Solve for x
    x = 73,492,481,443.04/394,243.52
  6. Step 6: Final answer
    x = 186,413.92

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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.