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Finding the Fourth Proportional to 79,170.88, 118,762.08 and 26,579.92

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Solution

The fourth proportional to 79,170.88, 118,762.08 and 26,579.92 is: 39,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,170.88 : 118,762.08 = 26,579.92 : x
  2. Step 2: Convert to fraction form
    79,170.88/118,762.08 = 26,579.92/x
  3. Step 3: Cross multiply
    79,170.88x = 118,762.08 × 26,579.92
  4. Step 4: Simplify right side
    79,170.88x = 3,156,686,585.43
  5. Step 5: Solve for x
    x = 3,156,686,585.43/79,170.88
  6. Step 6: Final answer
    x = 39,871.81

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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.