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Finding the Fourth Proportional to 319,687.14, 479,530.56 and 95,046.60

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Solution

The fourth proportional to 319,687.14, 479,530.56 and 95,046.60 is: 142,569.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,687.14 : 479,530.56 = 95,046.60 : x
  2. Step 2: Convert to fraction form
    319,687.14/479,530.56 = 95,046.60/x
  3. Step 3: Cross multiply
    319,687.14x = 479,530.56 × 95,046.60
  4. Step 4: Simplify right side
    319,687.14x = 45,577,749,324.10
  5. Step 5: Solve for x
    x = 45,577,749,324.10/319,687.14
  6. Step 6: Final answer
    x = 142,569.86

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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.