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Finding the Fourth Proportional to 275,795.91, 380,614.61 and 207,692.73

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Solution

The fourth proportional to 275,795.91, 380,614.61 and 207,692.73 is: 286,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,795.91 : 380,614.61 = 207,692.73 : x
  2. Step 2: Convert to fraction form
    275,795.91/380,614.61 = 207,692.73/x
  3. Step 3: Cross multiply
    275,795.91x = 380,614.61 × 207,692.73
  4. Step 4: Simplify right side
    275,795.91x = 79,050,887,948.02
  5. Step 5: Solve for x
    x = 79,050,887,948.02/275,795.91
  6. Step 6: Final answer
    x = 286,628.21

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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.