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Finding the Fourth Proportional to 264,381.34, 396,555.60 and 84,462.32

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Solution

The fourth proportional to 264,381.34, 396,555.60 and 84,462.32 is: 126,688.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,381.34 : 396,555.60 = 84,462.32 : x
  2. Step 2: Convert to fraction form
    264,381.34/396,555.60 = 84,462.32/x
  3. Step 3: Cross multiply
    264,381.34x = 396,555.60 × 84,462.32
  4. Step 4: Simplify right side
    264,381.34x = 33,494,004,318.95
  5. Step 5: Solve for x
    x = 33,494,004,318.95/264,381.34
  6. Step 6: Final answer
    x = 126,688.23

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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.