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Finding the Fourth Proportional to 79,311.96, 118,943.64 and 26,707.32

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Solution

The fourth proportional to 79,311.96, 118,943.64 and 26,707.32 is: 40,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,311.96 : 118,943.64 = 26,707.32 : x
  2. Step 2: Convert to fraction form
    79,311.96/118,943.64 = 26,707.32/x
  3. Step 3: Cross multiply
    79,311.96x = 118,943.64 × 26,707.32
  4. Step 4: Simplify right side
    79,311.96x = 3,176,665,855.44
  5. Step 5: Solve for x
    x = 3,176,665,855.44/79,311.96
  6. Step 6: Final answer
    x = 40,052.80

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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.