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Finding the Fourth Proportional to 311,567.96, 467,351.94 and 74,910.65

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Solution

The fourth proportional to 311,567.96, 467,351.94 and 74,910.65 is: 112,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,567.96 : 467,351.94 = 74,910.65 : x
  2. Step 2: Convert to fraction form
    311,567.96/467,351.94 = 74,910.65/x
  3. Step 3: Cross multiply
    311,567.96x = 467,351.94 × 74,910.65
  4. Step 4: Simplify right side
    311,567.96x = 35,009,635,267.40
  5. Step 5: Solve for x
    x = 35,009,635,267.40/311,567.96
  6. Step 6: Final answer
    x = 112,365.97

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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.