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Finding the Fourth Proportional to 496,690.56, 744,974.28 and 141,735.60

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Solution

The fourth proportional to 496,690.56, 744,974.28 and 141,735.60 is: 212,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,690.56 : 744,974.28 = 141,735.60 : x
  2. Step 2: Convert to fraction form
    496,690.56/744,974.28 = 141,735.60/x
  3. Step 3: Cross multiply
    496,690.56x = 744,974.28 × 141,735.60
  4. Step 4: Simplify right side
    496,690.56x = 105,589,376,560.37
  5. Step 5: Solve for x
    x = 105,589,376,560.37/496,690.56
  6. Step 6: Final answer
    x = 212,585.83

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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.