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Finding the Fourth Proportional to 362,921.61, 543,971.80 and 182,720.61

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Solution

The fourth proportional to 362,921.61, 543,971.80 and 182,720.61 is: 273,874.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,921.61 : 543,971.80 = 182,720.61 : x
  2. Step 2: Convert to fraction form
    362,921.61/543,971.80 = 182,720.61/x
  3. Step 3: Cross multiply
    362,921.61x = 543,971.80 × 182,720.61
  4. Step 4: Simplify right side
    362,921.61x = 99,394,859,347.20
  5. Step 5: Solve for x
    x = 99,394,859,347.20/362,921.61
  6. Step 6: Final answer
    x = 273,874.18

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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.