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Finding the Fourth Proportional to 133,082.30, 199,623.45 and 80,594.30

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Solution

The fourth proportional to 133,082.30, 199,623.45 and 80,594.30 is: 120,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,082.30 : 199,623.45 = 80,594.30 : x
  2. Step 2: Convert to fraction form
    133,082.30/199,623.45 = 80,594.30/x
  3. Step 3: Cross multiply
    133,082.30x = 199,623.45 × 80,594.30
  4. Step 4: Simplify right side
    133,082.30x = 16,088,512,216.34
  5. Step 5: Solve for x
    x = 16,088,512,216.34/133,082.30
  6. Step 6: Final answer
    x = 120,891.45

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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.