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Finding the Fourth Proportional to 319,691.36, 479,615.96 and 95,050.82

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Solution

The fourth proportional to 319,691.36, 479,615.96 and 95,050.82 is: 142,599.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,691.36 : 479,615.96 = 95,050.82 : x
  2. Step 2: Convert to fraction form
    319,691.36/479,615.96 = 95,050.82/x
  3. Step 3: Cross multiply
    319,691.36x = 479,615.96 × 95,050.82
  4. Step 4: Simplify right side
    319,691.36x = 45,587,887,409.75
  5. Step 5: Solve for x
    x = 45,587,887,409.75/319,691.36
  6. Step 6: Final answer
    x = 142,599.69

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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.