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Finding the Fourth Proportional to 319,791.96, 479,681.33 and 106,575.35

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Solution

The fourth proportional to 319,791.96, 479,681.33 and 106,575.35 is: 159,860.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,791.96 : 479,681.33 = 106,575.35 : x
  2. Step 2: Convert to fraction form
    319,791.96/479,681.33 = 106,575.35/x
  3. Step 3: Cross multiply
    319,791.96x = 479,681.33 × 106,575.35
  4. Step 4: Simplify right side
    319,791.96x = 51,122,202,701.93
  5. Step 5: Solve for x
    x = 51,122,202,701.93/319,791.96
  6. Step 6: Final answer
    x = 159,860.81

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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.