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Finding the Fourth Proportional to 220,874.60, 331,311.90 and 73,130.60

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Solution

The fourth proportional to 220,874.60, 331,311.90 and 73,130.60 is: 109,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,874.60 : 331,311.90 = 73,130.60 : x
  2. Step 2: Convert to fraction form
    220,874.60/331,311.90 = 73,130.60/x
  3. Step 3: Cross multiply
    220,874.60x = 331,311.90 × 73,130.60
  4. Step 4: Simplify right side
    220,874.60x = 24,229,038,034.14
  5. Step 5: Solve for x
    x = 24,229,038,034.14/220,874.60
  6. Step 6: Final answer
    x = 109,695.90

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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.