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Finding the Fourth Proportional to 272,670.15, 409,103.64 and 95,203.30

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Solution

The fourth proportional to 272,670.15, 409,103.64 and 95,203.30 is: 142,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,670.15 : 409,103.64 = 95,203.30 : x
  2. Step 2: Convert to fraction form
    272,670.15/409,103.64 = 95,203.30/x
  3. Step 3: Cross multiply
    272,670.15x = 409,103.64 × 95,203.30
  4. Step 4: Simplify right side
    272,670.15x = 38,948,016,046.56
  5. Step 5: Solve for x
    x = 38,948,016,046.56/272,670.15
  6. Step 6: Final answer
    x = 142,839.31

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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.