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Finding the Fourth Proportional to 272,578.63, 408,921.44 and 95,091.43

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Solution

The fourth proportional to 272,578.63, 408,921.44 and 95,091.43 is: 142,655.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,578.63 : 408,921.44 = 95,091.43 : x
  2. Step 2: Convert to fraction form
    272,578.63/408,921.44 = 95,091.43/x
  3. Step 3: Cross multiply
    272,578.63x = 408,921.44 × 95,091.43
  4. Step 4: Simplify right side
    272,578.63x = 38,884,924,011.80
  5. Step 5: Solve for x
    x = 38,884,924,011.80/272,578.63
  6. Step 6: Final answer
    x = 142,655.81

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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.