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Finding the Fourth Proportional to 67,859.85, 101,789.78 and 46,491.49

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Solution

The fourth proportional to 67,859.85, 101,789.78 and 46,491.49 is: 69,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,859.85 : 101,789.78 = 46,491.49 : x
  2. Step 2: Convert to fraction form
    67,859.85/101,789.78 = 46,491.49/x
  3. Step 3: Cross multiply
    67,859.85x = 101,789.78 × 46,491.49
  4. Step 4: Simplify right side
    67,859.85x = 4,732,358,433.75
  5. Step 5: Solve for x
    x = 4,732,358,433.75/67,859.85
  6. Step 6: Final answer
    x = 69,737.24

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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.