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Finding the Fourth Proportional to 331,396.80, 497,168.10 and 106,767.60

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Solution

The fourth proportional to 331,396.80, 497,168.10 and 106,767.60 is: 160,174.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,396.80 : 497,168.10 = 106,767.60 : x
  2. Step 2: Convert to fraction form
    331,396.80/497,168.10 = 106,767.60/x
  3. Step 3: Cross multiply
    331,396.80x = 497,168.10 × 106,767.60
  4. Step 4: Simplify right side
    331,396.80x = 53,081,444,833.56
  5. Step 5: Solve for x
    x = 53,081,444,833.56/331,396.80
  6. Step 6: Final answer
    x = 160,174.89

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1.5x scale

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.