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Finding the Fourth Proportional to 362,641.18, 543,945.17 and 126,002.38

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Solution

The fourth proportional to 362,641.18, 543,945.17 and 126,002.38 is: 188,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,641.18 : 543,945.17 = 126,002.38 : x
  2. Step 2: Convert to fraction form
    362,641.18/543,945.17 = 126,002.38/x
  3. Step 3: Cross multiply
    362,641.18x = 543,945.17 × 126,002.38
  4. Step 4: Simplify right side
    362,641.18x = 68,538,385,379.49
  5. Step 5: Solve for x
    x = 68,538,385,379.49/362,641.18
  6. Step 6: Final answer
    x = 188,997.80

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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.