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Finding the Fourth Proportional to 291,512.80, 437,269.20 and 166,766.32

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Solution

The fourth proportional to 291,512.80, 437,269.20 and 166,766.32 is: 250,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,512.80 : 437,269.20 = 166,766.32 : x
  2. Step 2: Convert to fraction form
    291,512.80/437,269.20 = 166,766.32/x
  3. Step 3: Cross multiply
    291,512.80x = 437,269.20 × 166,766.32
  4. Step 4: Simplify right side
    291,512.80x = 72,921,775,333.34
  5. Step 5: Solve for x
    x = 72,921,775,333.34/291,512.80
  6. Step 6: Final answer
    x = 250,149.48

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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.