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Finding the Fourth Proportional to 165,287.72, 228,190.72 and 126,452.48

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Solution

The fourth proportional to 165,287.72, 228,190.72 and 126,452.48 is: 174,576.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,287.72 : 228,190.72 = 126,452.48 : x
  2. Step 2: Convert to fraction form
    165,287.72/228,190.72 = 126,452.48/x
  3. Step 3: Cross multiply
    165,287.72x = 228,190.72 × 126,452.48
  4. Step 4: Simplify right side
    165,287.72x = 28,855,280,999.90
  5. Step 5: Solve for x
    x = 28,855,280,999.90/165,287.72
  6. Step 6: Final answer
    x = 174,576.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.