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Finding the Fourth Proportional to 79,489.93, 119,160.77 and 26,862.61

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Solution

The fourth proportional to 79,489.93, 119,160.77 and 26,862.61 is: 40,268.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,489.93 : 119,160.77 = 26,862.61 : x
  2. Step 2: Convert to fraction form
    79,489.93/119,160.77 = 26,862.61/x
  3. Step 3: Cross multiply
    79,489.93x = 119,160.77 × 26,862.61
  4. Step 4: Simplify right side
    79,489.93x = 3,200,968,696.01
  5. Step 5: Solve for x
    x = 3,200,968,696.01/79,489.93
  6. Step 6: Final answer
    x = 40,268.86

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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.