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Finding the Fourth Proportional to 79,906.80, 119,775.55 and 34,888.62

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Solution

The fourth proportional to 79,906.80, 119,775.55 and 34,888.62 is: 52,295.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,906.80 : 119,775.55 = 34,888.62 : x
  2. Step 2: Convert to fraction form
    79,906.80/119,775.55 = 34,888.62/x
  3. Step 3: Cross multiply
    79,906.80x = 119,775.55 × 34,888.62
  4. Step 4: Simplify right side
    79,906.80x = 4,178,803,649.24
  5. Step 5: Solve for x
    x = 4,178,803,649.24/79,906.80
  6. Step 6: Final answer
    x = 52,295.97

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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.