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Finding the Fourth Proportional to 295,469.72, 443,139.78 and 85,061.96

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Solution

The fourth proportional to 295,469.72, 443,139.78 and 85,061.96 is: 127,574.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,469.72 : 443,139.78 = 85,061.96 : x
  2. Step 2: Convert to fraction form
    295,469.72/443,139.78 = 85,061.96/x
  3. Step 3: Cross multiply
    295,469.72x = 443,139.78 × 85,061.96
  4. Step 4: Simplify right side
    295,469.72x = 37,694,339,348.62
  5. Step 5: Solve for x
    x = 37,694,339,348.62/295,469.72
  6. Step 6: Final answer
    x = 127,574.29

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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.