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Finding the Fourth Proportional to 67,859.70, 101,705.82 and 49,203.78

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Solution

The fourth proportional to 67,859.70, 101,705.82 and 49,203.78 is: 73,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,859.70 : 101,705.82 = 49,203.78 : x
  2. Step 2: Convert to fraction form
    67,859.70/101,705.82 = 49,203.78/x
  3. Step 3: Cross multiply
    67,859.70x = 101,705.82 × 49,203.78
  4. Step 4: Simplify right side
    67,859.70x = 5,004,310,792.00
  5. Step 5: Solve for x
    x = 5,004,310,792.00/67,859.70
  6. Step 6: Final answer
    x = 73,744.96

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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.