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Finding the Fourth Proportional to 264,469.46, 396,691.86 and 64,779.28

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Solution

The fourth proportional to 264,469.46, 396,691.86 and 64,779.28 is: 97,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,469.46 : 396,691.86 = 64,779.28 : x
  2. Step 2: Convert to fraction form
    264,469.46/396,691.86 = 64,779.28/x
  3. Step 3: Cross multiply
    264,469.46x = 396,691.86 × 64,779.28
  4. Step 4: Simplify right side
    264,469.46x = 25,697,412,080.93
  5. Step 5: Solve for x
    x = 25,697,412,080.93/264,469.46
  6. Step 6: Final answer
    x = 97,165.90

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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.