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Finding the Fourth Proportional to 361,982.20, 543,167.70 and 151,641.40

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Solution

The fourth proportional to 361,982.20, 543,167.70 and 151,641.40 is: 227,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,982.20 : 543,167.70 = 151,641.40 : x
  2. Step 2: Convert to fraction form
    361,982.20/543,167.70 = 151,641.40/x
  3. Step 3: Cross multiply
    361,982.20x = 543,167.70 × 151,641.40
  4. Step 4: Simplify right side
    361,982.20x = 82,366,710,462.78
  5. Step 5: Solve for x
    x = 82,366,710,462.78/361,982.20
  6. Step 6: Final answer
    x = 227,543.54

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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.