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Finding the Fourth Proportional to 365,540.80, 548,311.20 and 99,334.30

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Solution

The fourth proportional to 365,540.80, 548,311.20 and 99,334.30 is: 149,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,540.80 : 548,311.20 = 99,334.30 : x
  2. Step 2: Convert to fraction form
    365,540.80/548,311.20 = 99,334.30/x
  3. Step 3: Cross multiply
    365,540.80x = 548,311.20 × 99,334.30
  4. Step 4: Simplify right side
    365,540.80x = 54,466,109,234.16
  5. Step 5: Solve for x
    x = 54,466,109,234.16/365,540.80
  6. Step 6: Final answer
    x = 149,001.45

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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.