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Finding the Fourth Proportional to 331,395.44, 497,078.91 and 106,750.85

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Solution

The fourth proportional to 331,395.44, 497,078.91 and 106,750.85 is: 160,121.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,395.44 : 497,078.91 = 106,750.85 : x
  2. Step 2: Convert to fraction form
    331,395.44/497,078.91 = 106,750.85/x
  3. Step 3: Cross multiply
    331,395.44x = 497,078.91 × 106,750.85
  4. Step 4: Simplify right side
    331,395.44x = 53,063,593,674.18
  5. Step 5: Solve for x
    x = 53,063,593,674.18/331,395.44
  6. Step 6: Final answer
    x = 160,121.68

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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.