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Finding the Fourth Proportional to 79,064.82, 118,613.09 and 29,145.17

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Solution

The fourth proportional to 79,064.82, 118,613.09 and 29,145.17 is: 43,723.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,064.82 : 118,613.09 = 29,145.17 : x
  2. Step 2: Convert to fraction form
    79,064.82/118,613.09 = 29,145.17/x
  3. Step 3: Cross multiply
    79,064.82x = 118,613.09 × 29,145.17
  4. Step 4: Simplify right side
    79,064.82x = 3,456,999,041.67
  5. Step 5: Solve for x
    x = 3,456,999,041.67/79,064.82
  6. Step 6: Final answer
    x = 43,723.61

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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.