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Finding the Fourth Proportional to 264,037.70, 396,056.55 and 86,562.65

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Solution

The fourth proportional to 264,037.70, 396,056.55 and 86,562.65 is: 129,843.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,037.70 : 396,056.55 = 86,562.65 : x
  2. Step 2: Convert to fraction form
    264,037.70/396,056.55 = 86,562.65/x
  3. Step 3: Cross multiply
    264,037.70x = 396,056.55 × 86,562.65
  4. Step 4: Simplify right side
    264,037.70x = 34,283,704,517.86
  5. Step 5: Solve for x
    x = 34,283,704,517.86/264,037.70
  6. Step 6: Final answer
    x = 129,843.98

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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.