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Finding the Fourth Proportional to 67,936.66, 101,870.30 and 39,911.46

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Solution

The fourth proportional to 67,936.66, 101,870.30 and 39,911.46 is: 59,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,936.66 : 101,870.30 = 39,911.46 : x
  2. Step 2: Convert to fraction form
    67,936.66/101,870.30 = 39,911.46/x
  3. Step 3: Cross multiply
    67,936.66x = 101,870.30 × 39,911.46
  4. Step 4: Simplify right side
    67,936.66x = 4,065,792,403.64
  5. Step 5: Solve for x
    x = 4,065,792,403.64/67,936.66
  6. Step 6: Final answer
    x = 59,846.81

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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.