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Finding the Fourth Proportional to 140,783.38, 194,295.00 and 80,363.11

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Solution

The fourth proportional to 140,783.38, 194,295.00 and 80,363.11 is: 110,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,783.38 : 194,295.00 = 80,363.11 : x
  2. Step 2: Convert to fraction form
    140,783.38/194,295.00 = 80,363.11/x
  3. Step 3: Cross multiply
    140,783.38x = 194,295.00 × 80,363.11
  4. Step 4: Simplify right side
    140,783.38x = 15,614,151,183.83
  5. Step 5: Solve for x
    x = 15,614,151,183.83/140,783.38
  6. Step 6: Final answer
    x = 110,909.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.