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Finding the Fourth Proportional to 667,992.62, 1,001,990.96 and 162,553.68

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Solution

The fourth proportional to 667,992.62, 1,001,990.96 and 162,553.68 is: 243,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,992.62 : 1,001,990.96 = 162,553.68 : x
  2. Step 2: Convert to fraction form
    667,992.62/1,001,990.96 = 162,553.68/x
  3. Step 3: Cross multiply
    667,992.62x = 1,001,990.96 × 162,553.68
  4. Step 4: Simplify right side
    667,992.62x = 162,877,317,874.73
  5. Step 5: Solve for x
    x = 162,877,317,874.73/667,992.62
  6. Step 6: Final answer
    x = 243,831.01

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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.