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Finding the Fourth Proportional to 264,633.32, 396,950.29 and 72,509.38

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Solution

The fourth proportional to 264,633.32, 396,950.29 and 72,509.38 is: 108,764.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,633.32 : 396,950.29 = 72,509.38 : x
  2. Step 2: Convert to fraction form
    264,633.32/396,950.29 = 72,509.38/x
  3. Step 3: Cross multiply
    264,633.32x = 396,950.29 × 72,509.38
  4. Step 4: Simplify right side
    264,633.32x = 28,782,620,909.97
  5. Step 5: Solve for x
    x = 28,782,620,909.97/264,633.32
  6. Step 6: Final answer
    x = 108,764.16

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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.