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Finding the Fourth Proportional to 67,896.80, 101,805.73 and 45,433.15

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Solution

The fourth proportional to 67,896.80, 101,805.73 and 45,433.15 is: 68,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,896.80 : 101,805.73 = 45,433.15 : x
  2. Step 2: Convert to fraction form
    67,896.80/101,805.73 = 45,433.15/x
  3. Step 3: Cross multiply
    67,896.80x = 101,805.73 × 45,433.15
  4. Step 4: Simplify right side
    67,896.80x = 4,625,355,001.95
  5. Step 5: Solve for x
    x = 4,625,355,001.95/67,896.80
  6. Step 6: Final answer
    x = 68,123.31

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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.