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Finding the Fourth Proportional to 264,587.61, 396,936.09 and 87,105.27

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Solution

The fourth proportional to 264,587.61, 396,936.09 and 87,105.27 is: 130,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,587.61 : 396,936.09 = 87,105.27 : x
  2. Step 2: Convert to fraction form
    264,587.61/396,936.09 = 87,105.27/x
  3. Step 3: Cross multiply
    264,587.61x = 396,936.09 × 87,105.27
  4. Step 4: Simplify right side
    264,587.61x = 34,575,225,292.19
  5. Step 5: Solve for x
    x = 34,575,225,292.19/264,587.61
  6. Step 6: Final answer
    x = 130,675.90

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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.