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Finding the Fourth Proportional to 75,630.88, 104,375.76 and 43,808.80

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Solution

The fourth proportional to 75,630.88, 104,375.76 and 43,808.80 is: 60,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,630.88 : 104,375.76 = 43,808.80 : x
  2. Step 2: Convert to fraction form
    75,630.88/104,375.76 = 43,808.80/x
  3. Step 3: Cross multiply
    75,630.88x = 104,375.76 × 43,808.80
  4. Step 4: Simplify right side
    75,630.88x = 4,572,576,794.69
  5. Step 5: Solve for x
    x = 4,572,576,794.69/75,630.88
  6. Step 6: Final answer
    x = 60,459.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.