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Finding the Fourth Proportional to 79,257.84, 118,887.48 and 34,270.80

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Solution

The fourth proportional to 79,257.84, 118,887.48 and 34,270.80 is: 51,406.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,257.84 : 118,887.48 = 34,270.80 : x
  2. Step 2: Convert to fraction form
    79,257.84/118,887.48 = 34,270.80/x
  3. Step 3: Cross multiply
    79,257.84x = 118,887.48 × 34,270.80
  4. Step 4: Simplify right side
    79,257.84x = 4,074,369,049.58
  5. Step 5: Solve for x
    x = 4,074,369,049.58/79,257.84
  6. Step 6: Final answer
    x = 51,406.51

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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.