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Finding the Fourth Proportional to 437,455.60, 656,183.40 and 156,936.40

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Solution

The fourth proportional to 437,455.60, 656,183.40 and 156,936.40 is: 235,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,455.60 : 656,183.40 = 156,936.40 : x
  2. Step 2: Convert to fraction form
    437,455.60/656,183.40 = 156,936.40/x
  3. Step 3: Cross multiply
    437,455.60x = 656,183.40 × 156,936.40
  4. Step 4: Simplify right side
    437,455.60x = 102,979,060,535.76
  5. Step 5: Solve for x
    x = 102,979,060,535.76/437,455.60
  6. Step 6: Final answer
    x = 235,404.60

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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.