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Finding the Fourth Proportional to 352,900.61, 486,994.28 and 197,841.62

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Solution

The fourth proportional to 352,900.61, 486,994.28 and 197,841.62 is: 273,016.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,900.61 : 486,994.28 = 197,841.62 : x
  2. Step 2: Convert to fraction form
    352,900.61/486,994.28 = 197,841.62/x
  3. Step 3: Cross multiply
    352,900.61x = 486,994.28 × 197,841.62
  4. Step 4: Simplify right side
    352,900.61x = 96,347,738,998.02
  5. Step 5: Solve for x
    x = 96,347,738,998.02/352,900.61
  6. Step 6: Final answer
    x = 273,016.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.