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Finding the Fourth Proportional to 273,169.12, 409,813.87 and 83,630.92

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Solution

The fourth proportional to 273,169.12, 409,813.87 and 83,630.92 is: 125,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,169.12 : 409,813.87 = 83,630.92 : x
  2. Step 2: Convert to fraction form
    273,169.12/409,813.87 = 83,630.92/x
  3. Step 3: Cross multiply
    273,169.12x = 409,813.87 × 83,630.92
  4. Step 4: Simplify right side
    273,169.12x = 34,273,110,976.86
  5. Step 5: Solve for x
    x = 34,273,110,976.86/273,169.12
  6. Step 6: Final answer
    x = 125,464.81

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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.