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Finding the Fourth Proportional to 264,245.29, 396,219.40 and 86,737.43

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Solution

The fourth proportional to 264,245.29, 396,219.40 and 86,737.43 is: 130,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,245.29 : 396,219.40 = 86,737.43 : x
  2. Step 2: Convert to fraction form
    264,245.29/396,219.40 = 86,737.43/x
  3. Step 3: Cross multiply
    264,245.29x = 396,219.40 × 86,737.43
  4. Step 4: Simplify right side
    264,245.29x = 34,367,053,245.85
  5. Step 5: Solve for x
    x = 34,367,053,245.85/264,245.29
  6. Step 6: Final answer
    x = 130,057.39

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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.