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Finding the Fourth Proportional to 301,324.87, 451,974.34 and 90,956.53

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Solution

The fourth proportional to 301,324.87, 451,974.34 and 90,956.53 is: 136,430.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,324.87 : 451,974.34 = 90,956.53 : x
  2. Step 2: Convert to fraction form
    301,324.87/451,974.34 = 90,956.53/x
  3. Step 3: Cross multiply
    301,324.87x = 451,974.34 × 90,956.53
  4. Step 4: Simplify right side
    301,324.87x = 41,110,018,294.10
  5. Step 5: Solve for x
    x = 41,110,018,294.10/301,324.87
  6. Step 6: Final answer
    x = 136,430.88

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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.