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Finding the Fourth Proportional to 312,183.21, 468,348.62 and 101,821.13

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Solution

The fourth proportional to 312,183.21, 468,348.62 and 101,821.13 is: 152,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,183.21 : 468,348.62 = 101,821.13 : x
  2. Step 2: Convert to fraction form
    312,183.21/468,348.62 = 101,821.13/x
  3. Step 3: Cross multiply
    312,183.21x = 468,348.62 × 101,821.13
  4. Step 4: Simplify right side
    312,183.21x = 47,687,782,871.49
  5. Step 5: Solve for x
    x = 47,687,782,871.49/312,183.21
  6. Step 6: Final answer
    x = 152,755.76

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1.5x scale

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.