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Finding the Fourth Proportional to 331,199.20, 496,863.60 and 141,659.20

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Solution

The fourth proportional to 331,199.20, 496,863.60 and 141,659.20 is: 212,516.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,199.20 : 496,863.60 = 141,659.20 : x
  2. Step 2: Convert to fraction form
    331,199.20/496,863.60 = 141,659.20/x
  3. Step 3: Cross multiply
    331,199.20x = 496,863.60 × 141,659.20
  4. Step 4: Simplify right side
    331,199.20x = 70,385,300,085.12
  5. Step 5: Solve for x
    x = 70,385,300,085.12/331,199.20
  6. Step 6: Final answer
    x = 212,516.52

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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.