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Finding the Fourth Proportional to 264,564.70, 396,843.18 and 64,886.61

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Solution

The fourth proportional to 264,564.70, 396,843.18 and 64,886.61 is: 97,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,564.70 : 396,843.18 = 64,886.61 : x
  2. Step 2: Convert to fraction form
    264,564.70/396,843.18 = 64,886.61/x
  3. Step 3: Cross multiply
    264,564.70x = 396,843.18 × 64,886.61
  4. Step 4: Simplify right side
    264,564.70x = 25,749,808,651.82
  5. Step 5: Solve for x
    x = 25,749,808,651.82/264,564.70
  6. Step 6: Final answer
    x = 97,328.97

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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.