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Finding the Fourth Proportional to 79,064.93, 118,644.19 and 29,179.78

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Solution

The fourth proportional to 79,064.93, 118,644.19 and 29,179.78 is: 43,786.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,064.93 : 118,644.19 = 29,179.78 : x
  2. Step 2: Convert to fraction form
    79,064.93/118,644.19 = 29,179.78/x
  3. Step 3: Cross multiply
    79,064.93x = 118,644.19 × 29,179.78
  4. Step 4: Simplify right side
    79,064.93x = 3,462,010,992.92
  5. Step 5: Solve for x
    x = 3,462,010,992.92/79,064.93
  6. Step 6: Final answer
    x = 43,786.93

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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.