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Finding the Fourth Proportional to 331,358.60, 497,120.70 and 106,740.20

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Solution

The fourth proportional to 331,358.60, 497,120.70 and 106,740.20 is: 160,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,358.60 : 497,120.70 = 106,740.20 : x
  2. Step 2: Convert to fraction form
    331,358.60/497,120.70 = 106,740.20/x
  3. Step 3: Cross multiply
    331,358.60x = 497,120.70 × 106,740.20
  4. Step 4: Simplify right side
    331,358.60x = 53,062,762,942.14
  5. Step 5: Solve for x
    x = 53,062,762,942.14/331,358.60
  6. Step 6: Final answer
    x = 160,136.97

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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.