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Finding the Fourth Proportional to 272,673.72, 408,961.32 and 95,231.46

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Solution

The fourth proportional to 272,673.72, 408,961.32 and 95,231.46 is: 142,829.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,673.72 : 408,961.32 = 95,231.46 : x
  2. Step 2: Convert to fraction form
    272,673.72/408,961.32 = 95,231.46/x
  3. Step 3: Cross multiply
    272,673.72x = 408,961.32 × 95,231.46
  4. Step 4: Simplify right side
    272,673.72x = 38,945,983,587.13
  5. Step 5: Solve for x
    x = 38,945,983,587.13/272,673.72
  6. Step 6: Final answer
    x = 142,829.99

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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.