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Finding the Fourth Proportional to 331,338.60, 497,007.90 and 173,546.55

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Solution

The fourth proportional to 331,338.60, 497,007.90 and 173,546.55 is: 260,319.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,338.60 : 497,007.90 = 173,546.55 : x
  2. Step 2: Convert to fraction form
    331,338.60/497,007.90 = 173,546.55/x
  3. Step 3: Cross multiply
    331,338.60x = 497,007.90 × 173,546.55
  4. Step 4: Simplify right side
    331,338.60x = 86,254,006,367.75
  5. Step 5: Solve for x
    x = 86,254,006,367.75/331,338.60
  6. Step 6: Final answer
    x = 260,319.83

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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.