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Finding the Fourth Proportional to 67,166.70, 92,712.81 and 41,687.98

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Solution

The fourth proportional to 67,166.70, 92,712.81 and 41,687.98 is: 57,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,166.70 : 92,712.81 = 41,687.98 : x
  2. Step 2: Convert to fraction form
    67,166.70/92,712.81 = 41,687.98/x
  3. Step 3: Cross multiply
    67,166.70x = 92,712.81 × 41,687.98
  4. Step 4: Simplify right side
    67,166.70x = 3,865,009,769.02
  5. Step 5: Solve for x
    x = 3,865,009,769.02/67,166.70
  6. Step 6: Final answer
    x = 57,543.54

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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.