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Finding the Fourth Proportional to 381,360.13, 572,040.19 and 132,042.13

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Solution

The fourth proportional to 381,360.13, 572,040.19 and 132,042.13 is: 198,063.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,360.13 : 572,040.19 = 132,042.13 : x
  2. Step 2: Convert to fraction form
    381,360.13/572,040.19 = 132,042.13/x
  3. Step 3: Cross multiply
    381,360.13x = 572,040.19 × 132,042.13
  4. Step 4: Simplify right side
    381,360.13x = 75,533,405,133.20
  5. Step 5: Solve for x
    x = 75,533,405,133.20/381,360.13
  6. Step 6: Final answer
    x = 198,063.19

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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.